BikeNHV
New Member
I'm about to do a tile job in my bathroom, and trying to finalize the decision about the tub - keep or replace. It's a kohler cast iron tub in refinishable condition. I would prefer to leave it in place due to the hassle of removal, and it just seems right in an older building.
The one sticking point is the tub drain. It's larger than standard size, see below. What I'm hoping to do is take it all out and replace it with a newer drain assembly, this will be easy since the walls will be open. But I don't know if there's enough "meat" on the tub to seat the smaller OD drain.
If the upgrade is not possible, I'll have to piece together the repair parts for a cosmetic repair, and also address why water pours into the basement when the water level reaches the overflow (bad gasket I'm assuming).
Good discussion about this drain/tub type here:
https://www.plbg.com/forum/read.php?1,335384
Which led me to this diagram, which I think is what I have now. Kohler's site says its all discontinued but I believe service parts are available:
https://www.guillens.com/kohler/Kohler SP4 (D)/svcparts/pdf/087926_8.pdf
What I'm hoping to install is a typical Gerber drain. The flange diameter looks to be 2 3/4:
https://s3.amazonaws.com/gerber-gh/579a4f24818af64912fbbb79/41-813.pdf
Because this is the only bathroom in that unit, I don't want to take the drain apart, possibly breaking something, then end up having to wait weeks for my supply house to get the repair parts (if they exist).
Any thoughts?
The one sticking point is the tub drain. It's larger than standard size, see below. What I'm hoping to do is take it all out and replace it with a newer drain assembly, this will be easy since the walls will be open. But I don't know if there's enough "meat" on the tub to seat the smaller OD drain.
If the upgrade is not possible, I'll have to piece together the repair parts for a cosmetic repair, and also address why water pours into the basement when the water level reaches the overflow (bad gasket I'm assuming).
Good discussion about this drain/tub type here:
https://www.plbg.com/forum/read.php?1,335384
Which led me to this diagram, which I think is what I have now. Kohler's site says its all discontinued but I believe service parts are available:
https://www.guillens.com/kohler/Kohler SP4 (D)/svcparts/pdf/087926_8.pdf
What I'm hoping to install is a typical Gerber drain. The flange diameter looks to be 2 3/4:
https://s3.amazonaws.com/gerber-gh/579a4f24818af64912fbbb79/41-813.pdf
Because this is the only bathroom in that unit, I don't want to take the drain apart, possibly breaking something, then end up having to wait weeks for my supply house to get the repair parts (if they exist).
Any thoughts?