Clamp on Hayward ProGrid DE Filter

sacredcow

Silver Supporter
May 8, 2018
337
Houston, TX
Pool Size
14000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
I have the 48 sqft model and this past weekend I gave it the bi-annual teardown and cleaning (I never backwash it- just take it apart and fully clean early spring and late summer).

The re-assembly section of the manual specifies to torque the clamp nut/bolt to 150 ft lbs and to "NOT HIT OR STRIKE CLAMP WITH HAMMER OR METAL TOOLS." I have done this teardown a few times now, and can absolutely testify that you CANNOT seal this thing just by tightening the bolt to the required torque, so I have been using a rubber mallet to encourage a good seal, then tightening to 150 ft lbs. I had to do similar things with the previous American Titan stainless housing, so I feel like the required mallet/hammer taps are not unusual.

Anyone have a different experience? I don't like hitting things when the literature says (more or less) to NOT hit things, but there is no way this thing seals with just a wrench!
 
Anyone have a different experience? I don't like hitting things when the literature says (more or less) to NOT hit things
You followed the directions explicitly with a rubber mallet.
NOT HIT OR STRIKE CLAMP WITH HAMMER OR METAL TOOLS
Hammers and metal tools will damage the clamp/belt doohickie. You used neither. (y)
 
You followed the directions explicitly with a rubber mallet.

Hammers and metal tools will damage the clamp/belt doohickie. You used neither. (y)
Well, the instructions do NOT mention the use of any striking technique. Only tightening the bolt.

I used a regular carpenter's hammer on the stainless one and it worked fine. This clamp seems to be aluminum (and the housing is plastic) so rubber seemed to be a better idea.
 
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