hydraulic cement vs 2 part epoxy, replacing gunite return

jamfro

New member
Mar 17, 2016
3
conroe,tx
So I am replacing a return on my gunite pool. I am drilling a 2 inch hole, for 1.5" pipe. I was contemplating using a 2 part epoxy like RCF. I've googled this extensively, and found almost zero info on this. From the very limited info I found people use hydraulic cement. If I use hydraulic I am a little bit worried about how well I can Pack into a hole that does not have alot of clearance, making a bigger hole also seems to increase the chances of it leaking. I've read about the theoretical greatness of epoxy, but I haven't really seen people say they have used it for this sort of application. Any advise from the experts would be appreciated.
 

joepaiii

Well-known member
May 16, 2013
254
Allen, TX
So I am replacing a return on my gunite pool. I am drilling a 2 inch hole, for 1.5" pipe. I was contemplating using a 2 part epoxy like RCF. I've googled this extensively, and found almost zero info on this. From the very limited info I found people use hydraulic cement. If I use hydraulic I am a little bit worried about how well I can Pack into a hole that does not have alot of clearance, making a bigger hole also seems to increase the chances of it leaking. I've read about the theoretical greatness of epoxy, but I haven't really seen people say they have used it for this sort of application. Any advise from the experts would be appreciated.
Why drill a 2 inch hole for a 1.5 inch pipe :)? I guess it give some room for play but I would think the smaller the better. Also - are you replastering? That would seal it as well. I would use cement - not epoxy for that type of repair. Epoxy is good for limited fixes or if you are trying to fix underwater.

I had my pool builder add two extra microbrites to my pool (1.5 inch pipes) after gunite was shot. I expected him to use a core drill but they came out with a jack hammer and punched a huge hole (3-5 inch) in the side. I was hoping they would seal it with hydraulic cement but the just used the plaster cement (which is a form of hydraulic cement or so they said). Anyway - so far so good - no issues.

Joe