Custom overflows in GVRD?

[Ron99]

Industrial Plastic is pricey. Surrey Plastic Works is as good but cheaper. Check the phone listings and see if you have a plastic supplier in North van other than Industrial Plastic and Paint and save some money. For my custom pico tank Surrey plastic works was half the price Industrial Plastic and Paint quoted me. They built a sump for me at a very good price too.

[Milad]

i called both of them and there is a huge price difference. Surrey quoted me half the price for a 4x4 sheet. And they said if I draw them something they would make it.

So whats the standard thickness and whats standard height from top of water?