Digital manometer or water is best ?

[Cee pee]

I used my Kane 455 for a tightness test today very accurate

 

[scorps]

Water for TT and Antonio digital for everything else. Electronic is essential for fan pressures as you get a more accurate readings.

I would'nt trust an Italian,like Sir Fergie once said if an Italian waiter gives me pasta i check under the sauce

 

[PETE 123]

Water for me. Sick of having to spend on things as it is. So simple is best for me

 

[tamz]

So Bod is this about , total system volume

-- Large drop in a small volume

-- small drop on a large volume

for same sized loss ?

or some other reason

Apart from the strength testing thing, it is also about volume.

On big stuff you work out the volume of the pipe then multiply it by the grm (gauge readable movement) and a constant factor(s) to determine the test duration.
Say the volume was 1m3 the ttd (test time) would be 21mins (depending what you are testing) with a water gauge or 5 minutes with an electronic.
Over about 1.5m3 volume you are onto a 24hr test with a gauge.
Btw if you ever see the grid mains layers testing their stuff they will be using a gauge.

 

[hammers4spanner]

water for me

 

[stevetheplumber]

regin premier is superb easy to read and spill proof doesnt blow the water out if you a bit to quick with the ecv

 

[BLOD]

I'm a fan of the regin premier as well, the refil liquid is a bit pricey though

 

[grahamgas]

Regin premier 45 here. Also have spare water gauges, one to 30mb, and one to 60mb for lpg work