Help with part/name for backwash/waste water exit valve hole

[DR87]

I've got a Heyward Pentair filter for an 18k gallon pool we inherited with the house we bought last August. When I backwash I have to put the hose over the exit valve hole and clamp it down with a metal adjustable ring. Not to mention I have to stretch the hose quite a bit to get over the little bit of the valve hole that protrudes out from the spider valve, and more often then not when I go to send the water out the pressure kicks the hose off making it a wet mess. I see the inside of the exit valve hole has threads for a reducer to make this easier. Why the previous owner didn't have one I have no idea.

What I can't figure out for the life of me is what this part would be named and where can I get one? Is it just a PVC reducer? Is it specific to the filter?

 

[1poolman1]

I've got a Heyward Pentair filter for an 18k gallon pool we inherited with the house we bought last August. When I backwash I have to put the hose over the exit valve hole and clamp it down with a metal adjustable ring. Not to mention I have to stretch the hose quite a bit to get over the little bit of the valve hole that protrudes out from the spider valve, and more often then not when I go to send the water out the pressure kicks the hose off making it a wet mess. I see the inside of the exit valve hole has threads for a reducer to make this easier. Why the previous owner didn't have one I have no idea.

What I can't figure out for the life of me is what this part would be named and where can I get one? Is it just a PVC reducer? Is it specific to the filter?

Hayward or Pentair? Which is the filter? Without knowing, the part you likely need is this:

Amazon.com

 

[DR87]

Hayward or Pentair? Which is the filter? Without knowing, the part you likely need is this:

Amazon.com

I'll check this out, I thought it was maybe something like that, but wasn't sure. Appreciate the help!