Looking for help for a first-timer. I've got a rusted out return header in this 15 yr old Raypak heater. New heater on the way but for 7-10 days I don't want a leaking swamp in the yard as I need to run my pump still. I was going to cut the pvc and re-route the plumbing to temporarily bypass the heater altogether. And then when new heater is installed, add new bypass valves for this in the future. Attached pics of the layout of the pipes...where is the best spot to try and do this? I've got the SWG flow switch right after the heater output line. Thanks for any advice or experience.