Malc.....life
ain't that simple......lets go back to high school physics
.......
Unfortunately the batteries are still flat in my solar powered abacus..... and I do have trouble
with the decimal point.......so lets consider the following examples with hypothetical submersion or head measurements .....
Bob K's semi submersible vessel submerges 100 mm below his vessels water suction port
Atmospheric pressure is 1 Atmosphere, ~~1 Bar or 14.7 PSI at the waterline
For every 10.06m of depth of water, we experience an increase in pressure of 1 Bar or 14.7 PSI
So the only pressure his tank silicone tube & push on fittings are subjected to is
0.00147 PSI over atmosphere @ +100 mm suction depth
Your HMS Fearless ballast tanks tops are 100 mm above the water suction ports, pressed up fully then open to an atmospheric port
.......so without repeating the computations above....
Your silicone tube & push on fittings are subjected to the same
0.00147 PSI over atmosphere @ +100 mm tank head above the water suction ports
I mentioned in another thread this week....'it is easier to detect and eliminate fluid leakage at 250 Bar than to cure fluid decay from 1 Bar"
Derek