Air Conditioning Drain Line

[bobthebuilder1]

Want to replace A frame noisy drain line elec pump in basement with pvc direct to 2" pvc verticle drain in adjoining utility room(approx 5' run). The bottom of heat pump is approx 20" above floor.
Logic prompts me to use max drop possible from heat pump to larger pvc drain T ing in with some combinations of adapters, etc.
The 2" drain was a washer drain that is no longer in use. If used again some time would the excess water flow from the washer back up into the A/C drain line? There is no floor drain. Is there a better way? The little pump wakes everyone sleeping in the basement bedrooms. Thanks, Bob

[Wgoodrich]

I take it you have a counter flow furnace with the A coil is installed at the bottom of your furnace. If this is true you will either have to pump the drainage up or drain to a sump hole.

This water is potable water that does not have to enter you sewer line or septic system. This gives you some options.

Bad thing is you are not allowed to direct connect that drain hose from the A coil to a drain. This A coil drain line is supposed to set in the top of a drain same as a drain hose of a washer. This limits entering a drain that is located below another drain.

You will need to plumb this drain much like a shower drain to drain pipes below the inlet such as your soil pipe.

I can see back flow from that smaller 2" drain yet if you wye out of your larger soil pipe the 2" connects to you should be fine.

The IRC does not allow a tap to that 2" washer drain if used as a washer drain.

Hope this gives you some options

Wg

[bobthebuilder1]

Thanks again Warren. Guess you're begining to think I'm a regular customer. LOL Bob

[Wgoodrich]

It is best to ask questions before you do a project instead of saying oops after you are done with the project. To plan ahead is to ask questions. You ask all you want till you feel safe with what you plan to do. Just remember there are many different views and opinions on any one certain subject. Listen to what everyone has to say then do what you think best. Less likely to make a mistake that way.

See you on your next endeavor.

Wg