Space Isn't That Much Of A Problem We Have All Under Teh Stair Case... We Founf A Fillter That Will Cycle The Tank 10 Times An Hour Or Somethng.... Can't Remember. Its Been So Long Now Just Waiting For It To Get Dropped Off. And We Have A Hot Tub Heater And Pump To pump The Water So We Will See How That Works. Also Few Other Back Ups