Pentair CristalFlo II Owner's Manual page 6

Installation (Continued)
5. Proceed to load correct volume of dry sand slowly (if sand is saturated loading
can be difficult).
6. Once sand is loaded discard loading disc and check to determine if stand pipe is
properly centred in tank opening.
7. Fill with sand, glass or other approved sand to the shoulder level of the filter.
Installing Multi-Port Valve
1. Following the sand loading, clean any sand particles or debris from upper surface
of tank opening.
2. Install six (6) position selector valve after placing O-Ring in cavity on tank body.
Place valve into tank opening while ensuring that the O-Ring has remained in
position.
3. Install selector valve into top tank opening and rotate valve to best suit plumbing
lines. Once valve positioned, tighten the lock ring firmly by hand. Note: It is not
necessary to over tighten.
4. Double check that incoming pool lines are connected to appropriate valve open-
ings as marked on valve port (i.e. pump, return (pool) and waste).
5. The threaded openings on valve are 40mm or 50mm thread which all accommo-
date barrel unions supplied with the filter. O-rings are supplied to fit between the
multiport valve and barrel union. It is only necessary to tighten by hand. THE USE
OF TEFLON TAPE IS NOT REQUIRED.
6. Remove plug from side wall of valve and install threaded pressure gauge (if not
already fitted) using Teflon tape wrap. Do not over tighten. Minimal hand tighten-
ing is adequate to provide a good seal.
Page 5