Running a DE filter without DE

JimMarshall

Gold Supporter
TFP Guide
Jun 5, 2017
1,003
Oil City PA
A friend has a new house that came with a pool. The manual for his filter says not to run the filter for more that 2 minutes without DE in it, is there any reasoning for this?
 

Richard320

TFP Expert
LifeTime Supporter
Jan 6, 2010
23,911
San Dimas, CA (LA County)
Yes. Bits of sand or twigs can get embedded in the material, or even poke holes in it without the layer of DE. The only reason they allow two minutes is to give you time to add the DE to the skimmer.
 

JimMarshall

Gold Supporter
TFP Guide
Jun 5, 2017
1,003
Oil City PA
Yes. Bits of sand or twigs can get embedded in the material, or even poke holes in it without the layer of DE. The only reason they allow two minutes is to give you time to add the DE to the skimmer.
Richard, with both a pump and skimmer basket is that really a concern, at least the twigs?