Quote Originally Posted by SnaFuBAR View Post
Oh ok, it's being fiberglassed. I was under the impression that it was going to remain brick/concrete. I have koi, too.

Fiberglass or pond liner are good. I would favor pond liner over fiberglass, though... Fiberglass resin actually takes years to fully cure. Laying some sand on top of the concrete before laying pond liner is the most desirable thing in this scenario, but would be a pain in the ass if it were to tear.
It's going to cost us about 2k for it be fibreglassed, but it is the best way to have, if your a koi keeper and your properly into it, and if your from the UK then you might of heard of richdon koi, well my dad is building his pond using tips of the owner and we are using the same filteration system as they do which is a settlement chamber then a chamber with jap matting in. And he recommends fibreglass, because we are currently keeping out fish in a kids swimming pool lol, and fibre glass only take at the most a week for to be ready for filling up, where as liner your supposed to fill it and leave it for a couple of months then empty it and then refill then it will be safe for your fish or something like that, we did have it on our old pond but when we were cleaning it we kinda punctured it, where as fibreglass is just a hard cover which is hard to break let alone crack.