I know nothing about Wiseman Pools but the OP has two posts and I think there is a rule somewhere about a poster not being able to diss a contractor unless they are known somewhat.
We are firm supporters of T&D but I did just check on Wiseman Pools at BBB and they had an A+ rating and no negative comments. Perhaps the poster can show pictures of the areas he said were eroding? I would hate to see a contractor's business ruined for no reason. I searched in the archives here and found nothing else negative.
Wiseman Pools