Honestly in a grainy bad picture of a dark basement you cannot tell difference between a 40 gallon and a 75 gallon water heater.

All I know is that I was driving down the street, saw a sign saying 1.98 a gallon and almost stopped the car to take a photo!

We did have one tenant dump 5 gallons of gasoline in the basement sump and then attract rats by storing garbage in the garage but that was taken care of quickly and there haven’t been any other issues.the main lesson from this one was I wish I had started earlier, deals keep getting harder to find.

And then I go to home depot and they say you have 6 sheets of plywood and 2 gallons of paint, just pay for 4 sheets and one gallon and we'll call it good.Yeah, when that happens, then I'll tell my tenants they can just pay part of the rent.

Your best quick solution may be to make the basement off limits and lock it, put a dehumidifier in there (there should already be one) and find where the low spot is, bust a hole in the slab the size of a 5 gallon bucket and drop a good sump pump inside the bucket when you get it in the hole.

(House built into the side of a down slope mountain.)My helpful neighbors told me that all I had to do was what everyone else does--put a 50 gallon trash can on wheels under the ceiling hole and just empty it in the bath tub down the hall after snow melt or rain events....HMMM nope, I got the permits to cut the parking deck from the house, replace rotten wood in the house and most of the deck and stopped the waterfall. 

If you are paying try  to get the oil vendor bill to get a per season estimate on gallons of use.

I might trade a gallon for a gun, Or a piece of livestock, but not for a pound of gold. 

For example, getting charged dump run fees even when we leave trash on,  every 2 week lawn maintenance while empty,  extensive paint jobs (and doesn't leave a gallon for touch up), high cleaning fees (even when we paint the whole house and change the carpets in all rooms), petty itemized things like installing a doorknob or air vent. 

Why do you pay $8.99 for a gallon of milk when I can buy the same product for $2.88 in Wyoming?