I have a 20' X 44' in ground vinyl pool. Aprox 38,000 gal according to an online volume calculator. Its new and been running about a month. Currently I'm getting my CYA up where it needs to be. I also have a Aquamatic auto cover and we will keep it closed when not in use. I want to set up the pump system and will probably go with a 15 gal brewers barrel. I understand I should get the higher pressure pump as the injector is also a check valve. I don't think I want the adjustable rate as I figure I'll handle the dosing thru run time. I can't figure out which pump to get. Also, do they all come with the tubing and weighted pickup and stuff? With the cover I would think my burn off would be greatly reduced. I assume the 10 GPD would be the way to go and just reduce the run time but I would have greater capabilities if needed. I was also thinking of partially burying the tank just outside my equipment house as another member did. Is there any problem with this? With it being so late in the season, would I be better off waiting for next year? I will leave my pool open all year, but if I understand correctly, once the water temp hits about 60 it will not require much chlorine. I was thinking I could manually dose it periodically thru the winter. Any guidance is appreciated.