Yeah I have this same problem.Make sure you spend an extra couple bucks per tube and get the good stuff.It will be waterproof tight and the good silicone stays pliable and flexes when expands.This keeps the seal 100% tight.The cheap crap won't flex and then will start cracking and allow water behind it in certain spots.Will slow the leak down but not get rid of it completely.I would take this time to make sure where the ceiling is soft that there is no leaks coming from the tub drain,shower diverter,or shower head pipe behind the wall.Also it's not always the tub leaking.The toilet is usually close by to the shower.The seal at the toilet to the floor for sewer or the bolts from the tank to bowl could be bad or the seal for the flush between the tank and the bowl.The water can slowly run down the outside of the back of the tank under the sub floor.When you take the drywall off and look at the sub floor underneath you should see darker areas where the leak is more prominent.You can also use a moisture meter to determine the first point of entry for the leak.Make sure control valve and diverter are snug to the wall and sealed properly.Water can get behind there while taking a shower and cause a slow drip.

Slow draining sinks/tubs get attended to before renting - I often replace the undersink plumbing.

If machines are in the units, I like to have a floor drain.

Sidewalks, streetlights, fire hydrants, curbs, gutters, storm drains etc.

A $400 drain cleaning or broken tree removal would be a 6.7% expense item for the year.

Rats (and mice) can actually enter a house through the bathroom drains or the toilet.

If it goes bad it could be a money drain for you when you are barely able to survive on your current income already.Hope it helps.

Run a length of perorated drain if necessary to it.

The tax hit is not there in a Roth IRA, but unless you have significant other retirement savings, draining a Roth IRA at age 59 1/2 is not necessarily wise either.More commonly, investors will get solid income producing assets in their retirement plan and then choose to take distributions of the income produced by those assets.

Fiberglass is the cheapest type of material that tubs are made from.I always recommend only a quality lighter weight cast iron/porcelain tub and proper ceramic tile surround with all new waste, drain, overflow, and supply piping and faucets.