I have an 18 ft round metal frame Intex pool that has a thru-wall skimmer with the pump on the bottom. The pump died a couple years ago so I took it off & attached a hose to the bottom & ran it to the new pump. Worked great for awhile but now it wants to leak at the place where the thru-wall skimmer & the hose attaches to it. Any suggestions on what to use to fix it? Should I get a replacement thru-wall skimmer (might work better to have a "real" hose attachment place!) & if so, the replacement ones don't have the exact same screw holes as mine so I'm not sure how well that will work. Thanks for any help ya'll can give me!