Water Master Grizzly PSI?

[Wade Rivers]

Apologies if this is a repeat but:

What's the PSI for my older Griz? Is it really 3 psi? Doesn't seem enough. How high can I safely go?

Thnx

 

[M_D]

FWIW, I’ve never used a pressure gauge…just go by feel.

I filled until the tube was tight to the touch with no creases or folds and it didn’t sag when I sat in the water.

My grizzly is still going after 22+ years ( handed down to my son)

and no issues with the new Kodiak