That clay drain tile is garbage.But now that everything is pvc, there is no way I'm buying that you're going to replace copper every 20 years.

After working on it, I noticed several other plumbing issues (faucet leaking out the back very slowly, drain basket leaking under sink, pipes leaking, etc.).  

@MONICA WATSON Perhaps you can provide a plumber to modify the water connections and drain, and she can get a new stackable set.

@J Scott your flipping book is outstanding & I think I drained an entire highlighter on it :-).  

Draining the water heater completely may help.

For example a nice shower head will make a big impression on a high percentage of potential renters- Always and I mean Always really check the condensate drain for AC units.- In single family homes, put a clause in the lease saying not to store anything in the attic.

I can do most maintenance my self, can change hot water heaters, unplug drains, and have even installed a few simple furnaces, but I have a handy man who I also use especially for laying carpet and tiles etc.

Now he thinks that might be too hard and maybe oughta have an auger.

There is a pool in the backyard that we drained, had inspected and filled back with water.

What I need to invent is a valve for the water main that when the temp goes below 40 degrees automatically turns off the water and at 50 turns it on , and then have auto drains on the low points that open up at 2 psi and close at 10 psi . ( those are available) Have it tied in with an annoying alarm like a smoke detector .