I have a water heater drain pan installed and I'd like to terminate it as close to code as is possible. The pan/water heater is currently in a closet that barely fits the pan. So unfortunately, there is no way I can fit an indirect waste receptor. The water heater is also at ground level, so I don't know how I can get it to terminate outside above 6 inches.

Currently, it goes into the crawlspace. I could either tap it into the bathtub drain before the p-trap or terminate it outside but it'd basically be at ground level. Which of these is best to implement and why/why not? I'm also open to other ideas if anyone has any.

  • My situation is similar - water heater on the first floor with a crawl space underneath. The drain from the pan just goes through the floor to the crawl space. This was done by licensed plumbers and passed county inspection. Since the pan is only there to prevent damage to the house if the hot water heater leaks, I'm not too worried about a little water getting into the crawlspace in that scenario. I also have a sump pump in the crawl space.
    – SteveSh
    Jan 13 '20 at 19:06
  • Can you attach some pictures? They might help in getting a good answer. Sep 8 at 17:17

What kind of house is it? You mentioned the crawlspace...If it's a modular you could tie it into the main waste line down there as long as you built a trap in between the pan and the waste line. If that's not an option, going into the bath drain is viable if you can easily access it.... Nothing there would violate code. Also, they make small automatic water pumps that will trigger and pump water up to 20' or higher, in that case route it into your laundry drain.

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