Clay, I have a 250 gal plastic tank outside that I pump thru the shop wall where I have household water filter housings mounted up that dump into a plastic 55 gal drum with a spiket on the bottom. prior endevor. I purchased a 50 gallon electric hwh and a couple northern pumps like you recommended. one for backup. would there be anything wrong with plumbing " your" setup in schedule 40 pvc? My plans are to filter to 5 micron before hwh. overkill maybe. then go thru another set of household water filters w/ 5 and then 2micron after hwh while oil is still warm. Why do you wait til the oil is 100 degrees before moving? safety? thoughts? thanks, Scott