I'm moving and reinstalling an older hot tub outside that has a very thin coating of urethane foam on it. I want to increase the foam thickness. Is this a do it yourself project? If so where do I find out more about the quantities of chemicals required etc. to give a certain foam thickness.
Answer:
It certainly can be a DIY project and when you buy the foam components and rent the equipment to deal with it, you'll find all the instructions that come with them.
