Hey BP,
I bought a property last year and it had a brand new septic tank and drain field installed. The tank was increased from 1300 - 1500 gallons, and it was inspected and got a clean bill of health. Fast forward 12 months, and the drain field is leaking into the drive way. Then, a couple of days later, it actually starts backing up into the house and I had to have it emergency pumped.
The back up seems to be that the tank filter was clogged by grease / fat. I've asked the tenants to please dispose of grease/fat/food in the trash vs. the drains (there is no disposal installed). I hope that's resolved.
However, the drain field still seems to be leaking into the yard. I've had three companies come out and all of them say the tank and the drain field are working properly, but the drain field isn't big enough. The field is 320 sq/ft and is estimated to process ~9K Gals of water a month, but the property is using ~15K Gals a month. So the drain field can't process it fast enough and causes the leak. The property has an easement, so the drain field can't be increased to process more, it's maxed out. The companies said that the field should have 4-5 people max living in the property, but there are currently 7 (4 adults, 3 kids) between the two units. It seems reducing the water usage is the only thing we can do to resolve the issue. Any other tips?
1) These tenants have been living in the property for three - four years respectively, and no one new is living there. The water usage has never been a problem before this year.
2) There are washing machines, but they don't drain into the septic, they drain into a storm drain (probably not a good thing either, but was like that when I bought it, I'll deal with this later).
3) The tenants swear there aren't any leaks, running toilets, excessive showers, etc.
I'm thinking the only thing I can do now is replace all toilets, faucets, showerheads, etc. with 'low flow' alternatives to reduce the water usage, and then ask the side with two adults and two kids to move out (or evict - they are overdue on rent now) and replace them with less people.
so, for the BPers,
1) Any tips on water usage?
2) If there is a health restraint of the number of people that can live in the house, can you use that for screening purposes (I don't discriminate against families with kids, but can I set a limit of only two people in the unit)?
3) Any drain field related solutions I may not be asking about to the companies I'm working with?
Thanks in advance!
Andrew V.