Zodiac

[Reddog]

I have purchased a zodiac MK 3
4.7m my problem is after about 4 days it looses a lot of pressure l have gone over the boat with soapy water and are confident there are no leaks, l put all valves to navigate which l believe isolated all chambers so if there was a leak only 1 chamber should go down but they all loose pressure evenly is this normal..?

[Fenlander]

Hi and welcome to the forum. Have you owned a SIB before? Do you know they can change pressure quite a bit with temperature? Could it be the case by coincidence you are inflating to pressure when warm and checking to find this apparent loss when colder?

[Reddog]

Iv never owned one before l know they loose pressure but within 1 week it is verry flat to the point it will just float I really appreciate your reply 😊

[Fenlander]

If it’s going flat to the amount the tubes lose shape and go wrinkly that’s a leak not temp change.

Some leaks can be hard to find. I usually make up the washing up liquid solution and whip it up to a foam and put that over each section then watch for several minutes. Foam can show up small leaks better than sloshing on soapy water.

[spartacus]

Sounds like a Zodiac Grand Raid if it's got inter-communicating valves. The rubber diaphragms and rubber cap inserts do fail over time, so check the valves especially when you're doing the soapy-water test.