Well I put my black goo on today. And Yes we have flood warnings. Seems all I need to do to get rain is paint something. Mike is threatening to forbid painting.
Evil Smelling black stuff $6.9something.
$1.00 squeegie from Dollar Tree---priceless.

I couldn't believe how easy this stuff went on. Like cleaning windows. Just had to be careful at the edges. Took less than 15 mins. Just pour in middle and move to sides. Now it has to cure.

Should I put more than 1 layer on?
Thanks for all the advice and help.
Miriam