In one room I need to cut groove into a wall to accommodate a condensate drain from a minisplit air handler/evaporator in an adjacent room. I know I could use a pump but I rather rely on old fashion gravity to transport the condensate to a drain, but in order to do so pass through one room's interior wall on a downward slope. What would be the best way and/or tool do so ? Any advice on how to also protect the drain from getting pierced in the future from a nail/screw. Probably shouldn't worry too much about it but rather avoid it if it is worthwhile. For the tool, I was thinking of a 4" grinder.
Thanks in advance!
Best Answer
If you use a circular saw a straight pair of lines can be cut. Then a simple wood chisel with a sharp whack will remove the block to make your channel. Steel nail plates used for electrical will protect where the lines are trapped by the studs. In between the studs push the line set back an inch so distance will be protecting it if you run the line set with the drain.
I would suggest your control wire for the wire beside unit be run in the channel with the drain. This way the line can be identified later with a stud finder with voltage alert. I agree with gravity drains as I have seen many pumps fail.