Question about aerobic septic system for house and shop

[Corkpuller]

My goal is to share the same system between a detached shop with 1 bathroom living quarters and a house with 2 full bathrooms.

Trying to find out the maximum amount of solid line you can run from house and shop to meet at the point of the first tank location. Or, is there a certain way to accomplish my goal?

We've had a conventional septic with two 500 gal tanks to a distribution box to the field (leech) lines for 30 yrs. I have very little knowledge about the aerobic systems.

And yes, I know I could contact an aerobic system installer to find out my answer. But I ain't, yet.
Bear in mind that this will be located in TEXAS.
Not interested in hearing about any "codes" for any other State. It will not be useful info to me.

Thanks

 

[LouNY]

I'd be tempted to put in a sump with a grinder pump at the shop, then run 2" up to your existing tanks.
If you do so ball valves will be your friends for any maintenance.

 

[wagne223]

The restriction on length of solid line will be the drop.
Drain lines must drop 1/4" per foot to function properly.

When I added a bathroom to my house, I could not get enough drop so I did what Lou recommended. I installed a sewage ejector system to pump from that bath to the Septic tank. It works great.

 

[AllByteNoBark]

I believe wagne223 is correct. I'm in South Texas and my furthest bathroom is about 125 feet from the tank. The septic installer complained a little about how deep he had to go but it all works as it should.

 

[Corkpuller]

The restriction on length of solid line will be the drop.
Drain lines must drop 1/4" per foot to function properly.

Thanks for rattling my brain, I knew that >>>>>> getting the proper drop. However, I wouldn't have known that 1/4 : 1' is required for a sewer system.

If'n my figgerin is correct, 60 feet of solid line from the house and shop to the common tank would put the entry to the tank @ 15". That should be no problem, and a man may want that tank even deeper.
With these systems, is there a maximum depth to set the tank?
The aerobic systems I see around here have exposed mushroom looking tops above ground. ??? I suspect the solid line inlet is situated somewhere between 3/4 to the top of the tank. ???

I need to start looking around here and find a house being built and ask when the septic install is, then I could see the "guts" of the system.

 

[RNeumann]

I’m not sure what you mean by “solid line”. Are you talking rigid pipe or solids as in turds?

Their is no maximum distance between the structures and the tanks if that’s the question. Entire cities are run on gravity if it’s possible. Either your structures are uphill from the tank your your tank will need to be deeper for a gravity system. If you are talking pumping those can be sized to pump about any distance. At some point it will be cheaper to install a second system vs the cost to pump though.

How far and what’s the grade difference (higher or lower vs the tank)? How far apart is the house and shop? I’m assuming the tank is near the house?

 

[Corkpuller]

How far and what’s the grade difference (higher or lower vs the tank)? How far apart is the house and shop? I’m assuming the tank is near the house?

Ain't built anything yet. Have a clean slate, ~2 acres clear cut out of our 9 acres. Ground will be at the same grade.
Ain't gettin any younger, so this shop (40x60) will be very close to the house.
Probably back wall of house will be even with front wall of shop. If the house plan ends up with front facing garage doors I may line the fronts of both buildings up.
Still kickin tires and doodlin with a pencil.

and solid line, I'm talkin pipe. If I was talkin turds I'd a posted on the Mahindra forum.

 

[hawkeye08]

When we installed our septic system for the house we were building in '93, we were living in a trailer about 50 from end of house that the septic was planned for. We simply put a "Y" in the pipe to the tank, house comes into one side, the trailer on the other. All the pipes have the proper slope, never had a problem.

 

[Corkpuller]

When we installed our septic system for the house we were building in '93, we were living in a trailer about 50 from end of house that the septic was planned for. We simply put a "Y" in the pipe to the tank, house comes into one side, the trailer on the other. All the pipes have the proper slope, never had a problem.

Is that an aerobic system?

I was thinking of doing it the same but am not sure if there would be any “get ya’s” with the aerobic systems.

 

[PILOON]

More and more cities are mandating frequent pumping, in our area its every 2 years (but 4 for seasonal users).

Based on this trend I suggest you want to do whatever to have only the one system.

Just this year folks have been getting letters to confirm their seasonal usage.