runrex

We live in South Florida and our Hayward C800 filter leaks badly from small vertical cracks where the cap meets the main body. I am going to try some marine glue but am not very confident that will be a long term solution. Hayward and Pentair seem to be the most popular replacements here. The Hayward C900 is $634.00 installed including tax. The Pentair Clean and Clear 100 is $15.00 more. The pool is very rarely used and has run well for 6 years on the old Hayward C800. I can buy the Hayward C900 on E bay for $240 delivered. I am not much of a plumber but am considering giving it a try for the almost $400 savings. Any recommendations on quality/performance between the 2 brands. A 1 year warranty seems standard w both units. Is this something I should attempt on my own and are there any DIY videos on how to do it ? I am a pretty good auto mechanic and handy around the house. I can't imagine paying a plumber more than 2 hours labor. What would parts/glue cost ? Thanks for your help

The hole size 4" and overall height 17 3/8" is the same. The only difference is the overall diameter of the cartridge the C800 is 8.5"...the C900 is 8 15/16"..this means I would have less than 1/4" (3.5/16th") on each side. Will this cause a problem ? Since the height and hole size are the same, the cartridge should fit well except for that weee bit of space left to right. I even notice that the current proper cartridge for the c800 does not fit snug to the sides. I am replacing the c800 due to some small vertical cracks on the housing (not the top) where the lid snugs down. The new O ring gasket no longer prevents water from flowing from underneath the lid. I have put some marine epoxy on the cracks today but I think that will only be a short term solution. Any help would be much appreciated. I have 3 perfectly good C800 filter elements that I don't want to throw away. Thanks PS: I'm paying $240.00 delivered from a trusted Ebay seller and $65 to install it...does that sound good ? My local pool company wants $600 plus tax