That long nut looks home made and pressed into the back of the anchor
This is all I could find, installed by a local pool shop but the anchors would have already been there I think.Ok, that's really odd.
Do you know who the cover manufacturer was?
Gotcha! Yes my husband says all the holes in the pavers won't need to be drilled larger based on the new anchors but we will have to deal with needing a larger and longer hole in the dirt below the paver. We are at least going to replace the non working ones ASAP and I think plan to replace the rest next season before they fail more. Always something to do for the pool!Looks like you have some extra room, so you might not have to drill a bigger hole if the pipes will fit.
I suspect that you will have to drill some holes bigger, but it is difficult to tell for sure.
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I really appreciate this advice as wow the amount of dirt in the threads of the ones we were able to actually turn was gross. I would much rather keep up with maintenance than dealing with replacement too soon that's for sure!Once you get everything fixed, you'll want to protect the anchors from corroding as much as possible. You can read this thread on how a TFP user fixed and protected his anchors using end caps -
Wall anchor screws getting Rusted
Pool cover was installed end of last year and sheer decent wall has these bolts for pool cover wire anchors. these suppose to be stainless steel but they are getting rusted. i am afraid if i don't fix them now eventually i will have rust drip on wall. i think its the salt water that's rusting...www.troublefreepool.com
There are many styles of end caps and or plugs that can be used. It would be best to apply a high quality machine grease to the Loop-Loc connectors when the cover is not being used (during the swim season) and to seal up the brass anchors as much as possible. Brass is fine with outdoor exposure and will only darken with a passivating layer that prevents further corrosion. But you want to keep as much junk and dirt out of the anchors as possible. The flexible caps and covers might be an eyesore so you'll have to search Amazon and see if you can find something cheap that will work. Just putting the brass screw back into the anchor and leaving it to sit all swim season is asking for it to get locked up by dirt and debris. Protecting it will help it last a lot longer.