We fired up the pump this weekend and we have a leak. It looks like the housing gasket is really worn. I'm trying to find a replacement part but our pump is rather old and I'm having trouble finding a replacement. Our local pool store says they don't have it in stock. The pump is a Hayward Max-Flo 1HP model # SP1607-Z-1-MX. Found this one on Amazon but not 100% sure it will fit. Any suggestions? I tried looking up the model number on Amazon but it's not found. We do not have an owners manual for it - I've looked online for one but not coming up with one that matches our model number.