6K gallons, gunite construction, built in 2004
1st circuit:
(2) 3" bottom drains at a depth of 5' to
undersized 150 gallon vortex with brushes; flush to waste
top pick up to 3/4 hp Performance Pro pump
front no niche skimmer T's into line just before pump
80 w Emperor UV
some flow splits off to TPR's; 1 mid-level, 3 low-level
Ultima II 6K filter; flush to waste
(2) 200 gallon upflow bio-chambers, each w/ 26" of J-mat cartridges; flush to waste
(2) water falls and short streams; one is the old filter falls from our first water garden containing J-mat cartridges for our QT
(2) 80 lpm Medo air pumps; each drives one aerated bottom drain and (3) large stones in one of the bio-chambers
2nd circuit:
retro installed no niche skimmer
1/3 hp Performance Pro pump
Ultima 6K filter; flush to waste
surface jet return racetrack skims the surface and back to the nns
3rd circuit:
Hi-Blow 40 lpm air pump driving (2) large airstones and the DIY foam fractionator