I am having the liner on our 20'x40' in-ground pool replaced next week, and am considering reconfiguring the skimmers and returns as long as everything is opened up.
Right now, I have just one skimmer in the middle of the 40' stretch, and a single return located on the same side as the skimmer, about 5' from the end of the pool (shallow end). Our pool service has provided a quote of $3,200 to install another skimmer and another return, and (I think) locate the returns to the opposite side of the pool from the skimmer.
Combined, the liner replacement and skimmer/return projects add up $$s. I'd appreciate thoughts on whether the skimmer/return work is worth the cost.
Also, the main drain has not worked since we bought the house 15 years ago. I suspect it was plugged intentionally after a leak. Repairing that will likely cost additional $s. And yes, I did squeeze 15 years out of our liner!