Just out of Axminster.
Not sure why I am doing this, but I'm gonna stick my neck out and give some guesstimates! Judging by the pic, which is an inaccurate gauge because the dirty section is far away, the increase could be 30% or more. After 12-18 months after install, 12% would be about average. Due to them being relatively close to the sea though, it could be more. If they are monitored real time, why could you not tell the difference?

[/quote]
Because the customer, as of 23:48 April 7 2013, has not yet supplied me with the information and they're about 10 miles from the Sea.
[/quote]
Ok. We can Bluetooth into some systems to get instant readings. Thought you may have done the same.
