I’ve decided to try to figure out our basement floor drains. My goal is to ascertain:

• How the drains themselves are configured;
• Where the plumbing goes;
• Why they seem to hold water indefinitely; and
• Why they back up into the basement during heavy rainstorms.

My goal is to either fix the existing drain system (I’m assuming it’s clogged), or reroute the drains somewhere else, like a sump pit. A third, less desirable, option would be to just close the drains up completely. But I’d rather keep the drains around, because (properly working) floor drains provide cheap insurance against flooding from things such as burst washing machine hoses, busted water heaters, etc.

My current hunch is that the drains tie into an old network of underground pipes that also used to handle the rain downspouts. I’ve abandoned most of these in favor of downspout extenders and splash blocks. However, the pipe openings are still there, and they still collect some water in rain storms. Assuming the original piping is plugged up, this could account for the rising water in the drains during rain storms.

[More:]

Yesterday, I tried sucking some water out of one of the drains using a wet/dry vac and some PVC piping sized to fit into the drain openings. I’d estimate I sucked out around 20 gallons before giving up — much too labor intensive. However, I managed to get the water level down around 2 1/2″, and the water dropped around the same amount in all the floor drains I checked, which seems to confirm that the floor drains are tied together, and that the pipes underneath them are relatively clear. There’s still too much water to see all the way down to the bottom of the drain, though. Interestingly enough, after 12 hours or so, the water level had crept back up around 1/2″. No rain during that period, and I’m relatively sure it’s not ground water — our water table is not that high.

Next up, I want to get the drains completely free of water, and try to figure out where the pipe exits the drain. Apparently there’s quite a bit of water down there. So, I’m going to need a better (less labor intensive) way to get the water out. I’m going to try a drill powered pump, with the discharge going into the sump pump pit. With the drain free of water, I’ll try to get an idea where it goes, and see if there’s any chance of getting a snake down there.

With the drains empty, I’ll then try flooding a couple of the downspout pipes outside, and see if any of the water ends up in the drains. That will tell me whether they all tie together. At that point, can make some decisions as to what to do next.

Aah, the joy of old houses. Stay tuned!

Wednesday, I took the day off work and moved the bulk of the circuits off our old FPE “Federal Noark” panel, to the new Square D QO panel. There are three circuits remaining to be done, all of which are connected via conduit, so I’ll need to reroute these before I can rip the FPE panel off the wall. I’ve blocked off next Wednesday to do this, as the wife -n- kids figure to be out of the house most of the day, and I have no meetings at work.

As with every other project in this house, half the work seems to involve fixing shoddy previous-owner retrofit work I encounter along the way, and this project has been no exception. Here’s what I’ve found and fixed so far.

1. Old QO subpanel didn’t have its netural bus isolated from ground. New panel has a separate ground bus and an isolated neutral bus.
2. The basement clubroom exhaust fan circuit was wired with 14 gauge wire but had a 30 amp breaker. It now has a 15 amp breaker.
3. Whole house fan circuit was doubled up with one of the lighting circuits. Someone probably did this at one point to free up a slot. They are now two separate circuits again.
4. The wiring to the boiler room/office light switch had individual strands of wire running unprotected behind the paneling. Apparently, when the room was finished, someone removed some conduit but didn’t bother to replace the wire. I replaced it with romex.

I’m sure there’ll be more to come..