1. We removed our old liner today and noticed ant trails (probably why we're having to replace the liner). I've read several posts here about this subject, but did not find a definitive answer on taking care of the ants. I've read borax, DE, commercial ant powder, 7dust and bleach. I've not been able to find if this stuff is safe next to the liner all the time. Of course, I prefer borax because I have it on hand, but will do whatever is best. Right now I'm leaning on getting DE and just spreading it on top of the sand (between the sand and liner).
Second question: Spots of green algae on top surface of sand. It's not deep in the sand, you can actually brush it off. Is this normal? Should I spray with a bleach mixture before putting new liner down?
Thanks in advance!