Help with Pentair NSP 36 Stainless Steel Top of tank seal tricks/tips

blt4ice

Member
Mar 27, 2013
13
Newark, DE
Hi everyone, I'm going crazy here, I have been trying to get the top of my tank to seat on the bottom part ie. seal around the o-ring.

I'm using Blaster industrial strength Silicon Spray Lubricant and have cleand the o-ring, tank bottom channel and the top part as well. I've been able to do this over the past 15 years but I think my age is starting to show or I just need a new trick.

Does anyone have a trick or tool suggestion to getting this on easy? I've tried channel locks, vice grips and clamps, regardless a tool pops off due to the seesaw effect on it.

Thanks in advance.

Brian
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,372
SouthWest Alabama
How well does the o-ring fit the groove? If it's slightly stretched it can be a bear to get to seal correctly. Also, I've found pool lube to work better than silicone spray when having a difficult time.
 

blt4ice

Member
Mar 27, 2013
13
Newark, DE
it will bulge out a bit, that was why I couldn't get that last 30 some degrees of an arc down. And the spray lube probably isn't as sticky as what I normally used before it was more of a silicon grease so it wouldn't slide around as much. I'll try going back to the sticky grease and see if that works, nevertheless I do have a new o-ring on the way from Amazon, 14 bucks, local pool store 40 bucks!!!
 

JamesW

TFP Expert
Mar 2, 2011
14,942
Put the top on and then put the clamp on with the back of the clamp matching with the part of the top that's down.

Then begin closing the clamp and then squeeze the top closed.

The clamp will keep the back down as you close the top.
 
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