My cousin just called me (I take care of her pool too) she has a 21' 48" round ABG pool. Well the other day I noticed rust around the skimmer. Their daughter went to check the sock I put in it because I told them to clean it daily and the liner was bulging thru the rust spot. So my husband grabbed his pump and we went to help them drain it before the whole pool collapes. We left a foot of water in it to keep the liner from shrinking hopefully. Our local pool supply wants $1000 for just the wall. Do you guys know of anywhere online to get it cheaper. They bought it used 3 yrs ago and put a new liner in it then, other than that its a nice pool, but not worth putting $1000 in. TIA