Let me tell you, take stupid up on the black pvc.
Last summer I build my sump, and I thought you could only use glass with glass. and acrylic on acrylic.
I went the the glass shops because the glass at HD and lowes was to thin, 1/8 window pain glass, not sturdy at all. I had to get the glass cut twice, very exspensive to say the least. But that isn't the problem. With all that glass in the sump, it makes it very, very heavy. If you can get away from the extra exspense and the weight, then do.