For those of you with the ultra frames what do you do about the water that collects in the liner opening right under the frame section for the legs? Ive been battling an algae issue and now I know why. I never thought to check there but almost every single pocket where there is a leg there is standing green water. Should I take a small needle and put a could drain holes after I get them cleaned up? What other options are there to keep water from collecting there?