Can a Hayward bump type (tubes) filter go bad with age?

tallpall

Member
Jul 28, 2012
9
Having trouble getting the 24' above ground pool crystal clear....and suspect the 11 year old filter is losing it's grip. DE does not (stay) on the tubes. When I take the unit apart the DE, except for a few clumps at the very top, has gone to the bottom. I'm thinking it might be age has worn them too smooth? I'm using 10-1 muriatic acid to soak it in over night before each new batch and it still falls off. Is this aged out of usefulness?
 
A couple things to consider:
1 - It's not uncommon for DE to fall of the grids/fingers when the pump is off. Once the water flows again, it throws the DE slurry mixture back onto the grids/fingers.
2 - Are you doing a thorough cleaning of the grids/fingers with TSP or a powdered dishwasher detergent BEFORE the acid bath? If not, you can ruin the grids/fingers as the acid will cause contaminants to fuse to the material.
 
Having trouble getting the 24' above ground pool crystal clear....and suspect the 11 year old filter is losing it's grip. DE does not (stay) on the tubes. When I take the unit apart the DE, except for a few clumps at the very top, has gone to the bottom. I'm thinking it might be age has worn them too smooth? I'm using 10-1 muriatic acid to soak it in over night before each new batch and it still falls off. Is this aged out of usefulness?
Hopefully you didn't use acid before removing any oils on the tubes.
 
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