[A440]

Our A/C condensate drains via a pvc pipe to the crawl space sump pit. Well...almost, the contractor missed it by about 2 inches. I added pvc pipe so it fits over the top lip of the pit. The pit does not have a sump pump in it, and as far as I know just has dirt on the bottom. It was installed back in the 50's.
1) Is this up to code?
2) We are encapsulating the space, should I have another drainage solution when we replace the unit in the fall? Maybe draining into the laundry tub sink like the furnace condensate?
3) How deep should the pit be?

 

[A440]

Why don’t you ask your town inspectors that question, such as the building, plumber or HVAC inspector. They probably have all the local codes etc?

Good idea. Will do.

 

[A440]

Draining to the sump pit without a working sump pump is not up to code.
I can have it drain to our laundry sink via a condensate pump, just like the furnace. I can also have it drain to the outside, which would be fairly simple. When I upgrade our system I'll will make sure it is up to code.
I going to monitor the R.H. after encapsulation. If it stays below 75%, I think I will pass on the dehumidifier.

 

[A440]

I got the information from this site https://atmox.com/2021/06/21/crawl-space-humidity-in-crawl-space/
55%-75% is acceptable

 

[A440]

It is below grade. I'll monitor what happens when the water from the A/C drains empties into it. Or, I could just dump a pitcher of water in it and see what happens.