Has anyone ever tried Purple Power? I bought a 32 oz bottle of it at walmart in the automotive section, and also a 32oz bottle of simple green also in the automotive section. Both are in spray bottles but i will remove the sprayer and insert my chemical injector into the bottle to use it. I'll report back my findings (tho it may be a while, 2 inches of ice and 4-5 inches of snow on the ground right now, not sure my fresh water hoses would work right now. I am just curious as to what you guys' opinions of these two cleaners are if any of you have used them. I am more interested in hearing about purple power, as i have heard stuff about simple green already. Both cleaners are concentrated, but the packaging makes the purple power sound better and it is cheaper on top of that. I can buy a 2.5 gallon jug of it for $11. Simple green was $6 for 1/2 gallon. Also, Can I move my chemical injector from right at the pump to right PAST the heater, so i dont have to pump that chemical thru the heater?