Gerni Classic 120.1 Questions & Answers

Apparently 10 mins on 10 mins off. But I use for an hour with one minute breaks occasionally. It's lasted over 10 years and I see it as disposable now.

I recently used mine for 8 hours cleaning mould from concrete paths only stopping for 1/2 hr for lunch , however i did use a marine grade silicone spray 3 times before during and after by sqirting a bit into the pump dry and running it without water for a few seconds , no motor or pump overheat problems (it is a metal pump and works a treat )