Hey guys I have question I am looking for good video or book on how to rebuild your pump and build from scratch.
If you buy the parts from me, I have an extractor that I loan free of charge. You pay postage both ways, and keep it no longer than a week.
Here's the rebuild instructions for the 47 series (T1011, TS1011, TS2011, TS2021, ts1511, ETC,) http://www.generalpump.com/PDFs/INSTALLATION%20&%20SERVICE/47%20Series%20Service%20Instructions.pdf
And the 66 series (TSF2019, TSF2021, etc.) http://www.generalpump.com/PDFs/INSTALLATION & SERVICE/66 TSF Series Service Instructions.pdf
A thermal relief valve is only good for garden hose, pressure fed pumps. Most fail in a short time under suction fed conditions. Get rid of it.
Next time, don't tell the store clerk it's tank fed...
Here's the repair manual for the 66DX... http://www.catpumps.com/products/pdfs/5-66DXSvc.pdf
And the parts breakdown... http://www.catpumps.com/products/pdfs/66DX30G1I_F.pdf