Lavac head

[brokesailor]

I used a Lavac head for the first time today. After flushing I almost had to get a crowbar to break the seal on the toilet lid. How do you break vacuum after flushing?

[MastUndSchotbruch]

Originally Posted by brokesailor

I used a Lavac head for the first time today. After flushing I almost had to get a crowbar to break the seal on the toilet lid. How do you break vacuum after flushing?

Wait about 2 minutes. Easy, eh?

[gtod25]

the little button with the hole in it (either brown or white) in the flush water hose.

Part no. C or 3 in the attached;

Lavac Marine Toilets - Popular

even if you have not, once the water gets up to a certain level the lid seal will break and the lid can be opened. DO NOT force the seat or you will damage the seal.

[TQA]

Check that the little button with the hole in it which should be installed in the flush water hose is not blocked.

[hellosailor]

"How do you "
If you really want fun, find one of the WW2 vintage submarines that are open for visitors these days, and try reading the instructions on THAT HEAD.