I've searched the forum and didn't find a thread that covered this situation, so if there is one... please forgive my lack of search skills...
I have a Whisperflo which I managed to run blocked in for a couple hours inadvertently. I had closed the filter valve and forgot... felt really stupid that I started the pump and didn't realize that was going on. Anyway... it got hot, and the o-ring on the pump case as well as the outlet piping developed a leak. I've replaced the o-ring, but the pipe is a different story.
The builder hard-piped everything from the pump to the filter... I have no unions or obvious threaded connections.
There are no threads visible on the discharge pipe. All I found was some sort of flexible sealant around where it came out of the pump, and this was dripping.
I consulted my local pool supply company and they sold me some silicone sealant, which I applied and let cure for 24-48 hours. I was dubious about that approach because I didn't think applying it to the outside of the pipe joint was likely to be enough to keep the water pressure from pushing through. When I restarted the pump it still dripped...
What are my options? I was intending to use an exacto knife and try to remove all exposed sealant, because I think I didn't get complete covereage when I resealed it. I could also use some sort of solvent to try to get further down in the joint. However, I am still skeptical that this is going to stop it from leaking. Seems like I need to disconnect the piping and reseal the joint like I would a typical threaded plumbing connection. Am I going to need to get the hacksaw after this piping?