Jonny69's inventing shed: Giant Spudmatic gun

[Stan_Lite]

Originally Posted by Feek

You want to borrow my 300bar divers bottle?

(300 bar = around 4300 psi!)

That could get a little messy

The SWP (Safe Working Pressure) of a typical 15mm compression ball valve is around 16bar (approx 230psi). If the ball valve came from Screwfix, like the hole saw, I'd be wary of putting the 160psi through it that Jonny did.