So, we also have two large 90 galllon recycling carts (one for glass, one for mixed recycle - paper/plastic/metal) that are also provided by the service.

This includes getting a 1000 gallon tank, the county not liking the plastic plug in the bottom, swapping for 2 500 gallon tanks, and a few other glitches.

I don't know if this is frugal or practical, but I use the small cardboard boxes with my packets of instant oatmeal as trash receptacles and plastic cereal bags as their liners.

I also skipped the plastic washers and just used fender washers backed with pre-drilled pieces of wood (lath scraps).

Painting brick is like wrapping the building in plastic.

Bought a teardown at a tax auction, went in and knocked a hole in one of the kitchen walls, found three stud bays filled with plastic-wrapped used bills, mostly twenties but lots of fifties, hundreds. $873K total.

One duplex I had I would buy them plastic for the windows.

The cheapest is essentially a plastic tray and plastic tile cast as one piece.

For $20 you can get a thermostat cover which is a vented plastic case that locks.

I've never dealt with Septic in a park, but plenty of experience on SFHs.My advise would be 1) Find out the age of the tanks 2) Find out the material they are made of (concrete or plastic) 3) Same for leach fields.Reasons being: Old concrete tanks are far more vulnerable and likely to fail soon....the newer plastic tanks will most likely cause you no problems for a long time.So if I personally were to find out that these tanks were all plastic, and <10 yrs old, I would barely even worry about this.