handyman923
Member
I am installing a floor drain in an upstairs laundry room and need to install a primer valve. The drain I am using has a trap primer port inlet on the side of the drain near the top. I am installing the primer valve under a nearby sink.
In order to run a 1/2" line to the drain, I will need to cross two floor joists. Does the 1/2" line need to slope downhill toward the drain? Or can it go down and then back up to meet the drain? My problem with trying to slope it is that the holes in the floor joists will be very close to the edge of the joist, much less than 2".
Thanks for any advice!
In order to run a 1/2" line to the drain, I will need to cross two floor joists. Does the 1/2" line need to slope downhill toward the drain? Or can it go down and then back up to meet the drain? My problem with trying to slope it is that the holes in the floor joists will be very close to the edge of the joist, much less than 2".
Thanks for any advice!