On Tue, 8 Jan 2008 20:17:56 -0000, Dave Baker wrote:

In fact it's worth just seeing if the immersion will start to unscrew
with reasonable force without draining the tank first.

I believe the water offers a bit of support to the tank, it'll be
pressurised by about 1/3 bar by the head of water from the the storage
tank.

If you need to buy a immersion spanner get the box type rather than ring.

--
Cheers
Dave. pam is missing e-mail