Grey water drain + Flex Seal?

[perplexed]

Anyone ever use Flex Seal on there holding tanks? I had to do a repair on my grey water tank. The previous owner must have caught the drain line on something and ripped it right out of the holding tank. I used a shower drain and a big plastic patch from another holding tank and caulked and flex sealed the whole deal. I think it looks good, but curious if anyone has used this stuff.

[teejaywhy]

You can make a boat with a screen door using that stuff!!