| High Pressure | D.E. coated with normal build-up of pool dirt, algae, etc.
Overcharge of D.E.
Restriction in return line caused by small eyeball fitting
Partially closed valve on return line | Bump
Bump-Drain-Recharge
Change to larger size fitting
Open valve |
| Return Flow drop off | D.E. coated with normal build-up of pool dirt, algae, etc.
Pump strainer basket clogged
Skimmer basket clogged
Pump impeller vanes clogged
Air leak on suction side of pump
Electric motor running less than max. RPM | Bump
Clean
Clean
Clean with stiff wire brush through pump strainer opening
Check cover gasket, hand knobs, hose, clamps, etc.
Replace or tighten
Consult pump/motor troubleshooting guide
Most problems due to:
- Undersized/improper wiring
- Power cut-backs
- Both 1 & 2
|
| Short Cycles | D.E. loaded to capacity with pool dirt, algae, etc.
Bumping incorrectly
Bump handle bent
Pump output exceeds design flow rate of filter
Algae present | Bump-Drain-Recharge
Slow down stroke – quick stroke up. Repeat 6 times
Check and straighten, or replace
Check GPM/LPM output. Regulate pump output to max. filter GPM/LPM rating
Super-chlorinate, Bump- Drain-Recharge
|
| Short Cycles continuing after Bump-Drain-Recharge | Contaminated or clogged Flex-Tube braids due to:
- Natural build-up of chemical deposits
- Running D.E. charge too long with build-up of live algae present
- Operating filter without D.E.
- Operating filter too long without D.E. after the pump starts. D.E. must be added
- immediately after filter is filled with water and a steady stream is coming from the pump
| Clean tube nest (2 methods)
- Detergent Cleaning: Remove tube nest, hosing it down with forceful stream of clean water. Soak tube next in strong solution of laundry detergent and warm water. Hose down again.
- Chemical Cleaning: Use water and muriatic acid solution to chemically dissolve contaminates. Consult with pool dealer.
|
| Short Cycles when vacuuming | Dirty Water
Live, vigorously growing algae
Alum or flocking agents clogging the filter | Bump-Drain-Recharge more often
Add chlorine, then vacuum
Vacuum to bypass filter, avoid using flocking agents |
| D.E. leaking into pool through return lines | Opening or tear in one or more Flex-Tubes
Rip or hole in diaphragm gasket
Worn or loose-fitting diaphragm gasket
Loose bolts on tube nest plates | Replace Flex-Tube
Replace gasket
Replace gasket
Tighten bolts |
| D.E. leaking into pool through skimmer or main drain | Filter check valve worn or stuck open | Clean and/or replace valve |
| Hard Bumping | Caking of D.E. under tube sheet. Due to build up sun tan oil, hair, floating particles binding together to form clay-like substance
Overloaded with D.E.
Due to improper draining of last charge of D.E
Filter runs too long between bumping
| Bump-Drain-Recharge more often. Reduce use of oils
Bump-Drain-Recharge with correct amount of D.E
Bump more often
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