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General => Owner-Builder Projects => Topic started by: StinkerBell on March 30, 2007, 02:15:21 PM

Title: Long time no post........Septic Approval.
Post by: StinkerBell on March 30, 2007, 02:15:21 PM
Hi Everyone !

Sorry I have not posted in awhile. All work and no play makes for a dull girl.

So, update is my septic design was just approved after the first set was returned with about 6 things we forgot. Seeing that this is the first septic Hubby and I have designed I think 6 errors was not too bad. One of the errors was we did not place on the plan "New Septic" and we also forgot to add a written owners manual.

I now know way too much about human waste then I ever wanted to know. I always thought when I flushed it made it way IMMEDIATELY out to the sewer in the street and on its way to the sewer plant. It's not true. It likes to hang around....I will never flush a dead gold fish again.

It looks like by summers end all of the infra structure should be done. ;)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on March 30, 2007, 10:06:54 PM
We were afraid you didn't like us anymore. :'(

Great to hear from you again, Stinkerbell.  Glad you are making progress.  I'm afraid I would have failed the owners manual too. :-/

Not only do they like to hang around, Stinkerbell, not all of them want to go willingly when you flush.  I have never figured out why engineers figure that a 2"  throat is big enough for the trap in a modern toilet.  
Title: Re: Long time no post........Septic Approval.
Post by: desdawg on March 31, 2007, 01:22:17 AM
Wow, an owners manual! I hope ADEQ in AZ doesn't hear about that one. We have enough requirements. All my customers want is to hit the flush handle and have it go away. They don't want to know about anything else.
Glenn, I am not going to ask about your diet.
Title: Re: Long time no post........Septic Approval.
Post by: fishing_guy on March 31, 2007, 09:53:55 AM
Glenn, I am not going to ask about your diet.

I think it was the Parsnips. :-[

I can't believe they actually let you design your own septic system.  Up here in MN, it has to be designed and built by a liscensed contractor.

Unless you want an outhouse.  Then it's just pay 'em the $50 and keep it 150 ft away from water sources.
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on March 31, 2007, 10:12:32 AM
I think the parsnips and cabbage help.  Problem seems to be the steaks and cheese. :-/

Title: Re: Long time no post........Septic Approval.
Post by: Sassy on April 01, 2007, 10:50:11 AM
Happy anniversary, Stinkerbell!  Our 10th is coming up in June  :)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 01, 2007, 10:50:49 AM
Happy Anniversary, Stinkerbell. :)

Hope you two find each other funny for many years to come. ;D
Title: Re: Long time no post........Septic Approval.
Post by: StinkerBell on April 01, 2007, 09:25:02 PM
Thanks!
Title: Re: Long time no post........Septic Approval.
Post by: StinkerBell on April 01, 2007, 09:26:28 PM
QuoteHappy Anniversary, Stinkerbell. :)

Hope you two find each other funny for many years to come. ;D


Naked old people are funny to laugh at.


BTW

Someone needs to repeal that law of gravity thing.
Title: Re: Long time no post........Septic Approval.
Post by: desdawg on April 01, 2007, 11:16:24 PM
I once hooked a sewer line to a septic system for a Vitnamese guy. I didn't have any 45's so I threw a couple of 90's in. Then I went and got him and showed him what I had done, saying I would change it the next day. He said "Ya, supposed to be smooth." To which I replied, "Not a problem, it's only noodles. If you ever say 'Wheres the beef' we got trouble."  ;)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 01, 2007, 11:24:33 PM
Maybe you can invent an iron for a birthday suit, Stinkerbell.  You could make a million by the time you were old enough to need  it.

I suggest going to Saline Valley Warm spring.  You'd really enjoy yourself there. :)
Title: Re: Long time no post........Septic Approval.
Post by: natopotato on April 02, 2007, 06:34:38 PM
Can you please clearify... You can design and build your own septic??? Can you point me in the direction of any resorces??? This would be wonderful.

ANYTHING to cut costs!!

ps... any news in a DIY well drill bit i can slap on my dewalt??!!
Title: Re: Long time no post........Septic Approval.
Post by: StinkerBell on April 02, 2007, 07:27:16 PM
QuoteCan you please clearify... You can design and build your own septic??? Can you point me in the direction of any resorces??? This would be wonderful.

ANYTHING to cut costs!!

ps... any news in a DIY well drill bit i can slap on my dewalt??!!
We designed our own septic system. I have to buy a concrete septic tank (thats not something I want to make). You have to met the requirements of the county for your septic system. For example ours is designed  for 3 bedroom home. There was a lot of calculations based on the soil, tank, depth of drain field and area of drain field. We needed pump system in our design (which was the biggest complexity in the design). Find out from your county what the requirements are. We had a PERK test. That test was the threshold for us, no perk approval no chance for building for us. The Perk test gave us the parameters of what we could do.

Title: Re: Long time no post........Septic Approval.
Post by: deertracks on April 02, 2007, 11:50:23 PM
Good to hear you are still moving along on your project. We are in the same county and passed our perc for standard gravity system. My hubby designed the septic and he had never done it before either. We didn't have to include an owners manual. Our well and pump are in and the septic will come later... the perc was a "hold your breath" situation as we had already purchased the acreage.
Good luck with everything.
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 12:34:10 AM

Some counties require a licensed septic contractor to do it.  Ours loves to see a General Engineering Contractor license but a General Building Contractor -me -- can get by if they can demonstrate that the are capable of doing it right.
Title: Re: Long time no post........Septic Approval.
Post by: natopotato on April 03, 2007, 10:28:11 AM
Thanks Guys! I can tell this is going to be a wonderful comunity to share my up and coming building experience with.
Title: Re: Long time no post........Septic Approval.
Post by: Amanda_931 on April 03, 2007, 11:14:15 AM
there is something else.  (actually there are several something elses)

The Watson Wick--somebody's got more information than this, and I think it was posted here once.  Sand filters and graywater systems if you've also got something to do with your blackwater--however defined.

http://lists.ibiblio.org/pipermail/permaculture/2002-October/016199.html
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 11:23:13 AM
Stink says I needed to finally sign up.

Septic systems... this was for NE Washington.

The "perc test" requirements, needed a hole dug with a slope going down to about 6ft in the ground either corner of the drain field. Stink did wonders with our Kubota. BTW, this is emphasised time and time again, but do the perc test before constructing anything else on the property.

Engineer required what we expected, which was a pump driven septic system (well, the drain field was higher than the septic tank...). Thankfully we did not have to create a pressurized septic system, which I think is the worst. The drain field was specified as "exactly 12" deep" which means we will have to backfill another 6-12" over this.

Once that passed, I was to submit plans... no clue, no clue at all. Even with all the info the county sent us. County rules are that a home owner can submit twice. If the plans are rejected both times, then an approved licensed contractor must submit the plans. Lots of searching on web, and informally sent first draft by fax to the health department (doesn't count as a submit), where an engineer there helped set me straight. He was very encouraging.

So, thinking I had included everything he asked, and everything in the doc, I skipped past "submit a manual" thinking that as I was the home owner, I don't need to write myself a manual... how wrong I was. After the first submittal got returned, I looked at the list and thought "I have no idea how to design a septic system... help!" I called the engineer, who told me that the items were just minor and easy to fix and that I practically had it. He said that once I fixed them, I could informally send the plans to him, and he'll check over it before I submit the plans formally. When I did so, he gave me one "must fix" and a few suggestions before I submitted formally.

So, what did I submit?

I'll see about getting a PDF file up on the web if people are interested (I'll need to remove identifying details). All submitted details was accepted on 8x11".
The drain field is the most critical part of the system. As well as the primary drain field, there needs to be at least one backup drain field as the drain field has to be on "undisturbed" soil... I'm not sure how you can truely say "undisturbed" when you have to rip roots out, but you can't, e.g. park the RV on the backup drain field.

The pump was the most complicated part of the design and gave me most grief. You have to allow for normal use, and reserve in case the pump fails (gives about 2 days of 'critical only' use). As pump can fail, it must be disconnectable and retrievable.

When figuring out numbers, it was scarey to think that each time the pump runs, it pumps about 17 gallons into the pipes before anything reaches the D-box. When the pump has finished, 17 gallons slowly drains through a tiny hole in the pipe. The pump runs twice a day (if and only if the 'on' float indicates there is anything to pump) engineered to pump 180gal at a time. (The requirements given by the county engineer specified I can engineer a value up to 360, i.e. the daily dose).

Wow, long first post.
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 11:33:53 AM
Continued...

Fuzzy numbers. The septic system is specified as 360gal/day, which is the book number for a 3-bedroom house per county. (Off top of my head, I think I have the number right).

Now typical household would use much less than 360/day. Given parties or wash-days, you may use over 360gal in a day. But the whole thing is engineered so that if you average out the daily dose over a few days, it'll be less than 360/day.

Now, add a pump, the system has to be able to move not only the 360gal/day engineered daily dose, but also "some more" for those peak usage cases. The county engineer specified I could pump "1 or more times a day" meaning I could pump any amount up to 360gal/day. So, I can pump once, and allow for about 600 gal in pump chamber (360gal + some amount in bottom that never gets pumped out, + some reserve, + 17gal line charge). Or pump 2-3 times and have a smaller pump chamber. The pump chamber was 550gal with 11.8gal/inch, allowing a pump regularity of 2-3 times a day. I can't remember off top of my head if I specified 2, or 3 times. At one point I had 3 times, but I think after feedback I reduced it down to 2.

Ok, I've written enough for today, I'll dig my plans out later if anyone wants more detail.
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 11:35:10 AM
Wow , Hog -- good post -- tell Stink thanks for getting you to sign up.  Hope I'm not calling her a pet name -- you used it. :)

Please post whatever you can on this when you are ready.  Good job on a complicated project.

Thanks again, Stinkerbell.   ;D
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 11:38:58 AM
When you get to it - did you use a chamber in addition to the septic tank?   I assume so as the drop in ones are pretty small I think.  What about an effluent filter - was that required?  Daddymem recommends it - he's a septic and other engineer.
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 11:47:26 AM
Thanks Glenn.

The county health department have a wonderful group of people there. The county engineer could have been by the book and not helped us out at all. But he bent over backwards to help us get the plans right. Goes to show, you treat people nice, it usually pays off. Same was true with the electric company when we got the electric hooked up (did Stink post about that?).
Title: Re: Long time no post........Septic Approval.
Post by: Sassy on April 03, 2007, 11:47:39 AM
Welcome, Nethog!

John posted a link to Lloyd Kahn's blog & as I was browsing through I ran into a link to septic systems http://www.shelterpub.com/_shelter/_septic/bulletin_board.html

"New Info On Septic Systems

Here is a sneak preview of updates to our Septic Systems Owner's Manual, including a chapter titled "Excessive Engineering and Overzealous Regulation," which blows the whistle on corruption in the field and ripoff of homeowners throughout North America. Homewoners read it and weep!"  Lloyd Kahn
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 11:52:41 AM
I remember Stink talking about wanting to or being able to use her hair drier as the pole was getting put in.  I could just imagine her standing in the middle of an open field next to a pole drying her hair.  Certain things a lady can't do without I guess. :-/
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 11:52:51 AM
When you get to it - did you use a chamber in addition to the septic tank?   I assume so as the drop in ones are pretty small I think.  What about an effluent filter - was that required?  Daddymem recommends it - he's a septic and other engineer.

We're using a 3-chamber tank built by local concrete company. As for effluent filter, this was required (was on the list of things I forgot). As well as protecting the pump, the county engineer explained that it reduced the amount of effluent that found its way onto the field.

The county engineer also gave me the tip "most people put the pump on a 6" brick" explaining that some effluent collects over time at the bottom of the pump chamber. 6" immediately eats up about 70gal of the tank capacity... youch. But I received that tip well, and put that into the design.
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 11:57:11 AM
Good hint - to allow any solids in the effluent to settle to the bottom rather than pumping them up the hill to clog your field.  I designed and built one similar to this for a customer about a year ago.  Really didn't have to do anything but wrestle it out verbally with the county inspector.  We have good env health dept inspectors here too.  I try to be nice first and see if that works.  Many times it does. :)
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 12:04:03 PM
Maybe I should buy the staff a round of coffee next time I'm up there :)

The county engineer was really good at explaining the why's for everything. Helped me understand that it wasn't just a rule I had to follow, but the reason behind the rule.

For example, regarding the floats, as I said above, he asked me to change the design where I had the "override-on" and "alarm" wired together. He explained the scenario where, e.g. toilet is leaking, filling up septic tank through to pump chamber, forces override on, causing everything to pump up to drain field, floods drain field, burns out motor, and then floods down-field...

I was... yeah... good point.

Now the same scenario without override-on isn't pretty, but I still have a usable drain field after it.
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 03, 2007, 02:00:46 PM
Yeah -- floaters in the yard are a real bummer.  :-?
Title: Re: Long time no post........Septic Approval.
Post by: StinkerBell on April 03, 2007, 10:42:32 PM
 :-/ The bad thing about telling Hog about this BB, is that now I can not take credit for all his hard work.

And Yes, one can see me standing in the middle of the property next to a pole blow drying my hair :P
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 10:51:27 PM
Ok, here's the "detail" plan of the septic system, to scale excluding callouts. Yeah, it's rough. I did this in Punch 3D's 'detail' view as a makeshift drawing program. Click to zoom.

(http://wehavea.name/Photo.ashx/full-0f985c8976d84d7c92280381bacc994f.jpg) (http://wehavea.name/Photo.ashx/0f985c8976d84d7c92280381bacc994f)

Here's the wiring callout, which I included in the manual.

(http://wehavea.name/Photo.ashx/full-676f2333041c401982e4c34f58fa194b.jpg) (http://wehavea.name/Photo.ashx/676f2333041c401982e4c34f58fa194b)

In addition to these, we submitted a plot plan showing location of the septic system in relation to whole property, and the O&M manual.
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 03, 2007, 11:02:19 PM
For historical reference (= fun), here's when Stink was digging the hole ready for perc testing.

Like the boulders?

(http://wehavea.name/Photo.ashx/full-b392f578814f4130be0587d1ea426f64.jpg) (http://wehavea.name/Photo.ashx/b392f578814f4130be0587d1ea426f64)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 04, 2007, 12:44:50 AM
Great job on the plans Hog- pretty detailed compared to what we have to do.  Actually our health department designs the system - just gives us a paper with the specs to build to.

...and great hoeing, Stink -- did you dig the whole system or did you two fight over the hoe? :-?

Bad thing about getting the spouse on here is that nothing is sacred anymore -- except I do have veto power.  "I'm the decider." ;D
Title: Re: Long time no post........Septic Approval.
Post by: NetHog on April 04, 2007, 01:13:24 AM
QuoteGreat job on the plans Hog- pretty detailed compared to what we have to do.  Actually our health department designs the system - just gives us a paper with the specs to build to.

...and great hoeing, Stink -- did you dig the whole system or did you two fight over the hoe? :-?

Bad thing about getting the spouse on here is that nothing is sacred anymore -- except I do have veto power.  "I'm the decider." ;D
Well, some of that is probably overkill, but if my head's in the book, then I may as well capture the information for when I build it  ;)

I have no chance getting on the Kubota. But then, how many people can claim to have a wife who can dig a trench like this? ...

(http://wehavea.name/Photo.ashx/full-13ec8dde01b445498dff7a53bb25f196.jpg) (http://wehavea.name/Photo.ashx/13ec8dde01b445498dff7a53bb25f196)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 04, 2007, 01:21:34 AM
That is a good straight hoe job -- harder than it looks especially with the rocks. :)
Title: Re: Long time no post........Septic Approval.
Post by: glenn-k on April 04, 2007, 01:23:29 AM
Nice even spoil pile too indicating pretty good control. :)