[Steve Grocott]

Hey everyone, I have a recently got a  Honda GX390  outfit with a Mazzoni pump. I can reduce pressure at the lance by throttling down the engine or by turning down the control on the pump. I’ve got a decking cleaning job coming up and I know this needs a lower pressure.  What is the best way to lower the pressure at the lance? I’m operating out of a wheelie bin and the pump has 2 bypass hoses connected to the wheelie bin. Any advice would be appreciated!

[SB Cleaning]

I always adjust the pressure at the unloader valve.

[Steve Grocott]

Thanks for that👍

[Mike Halliday]

Use a bigger jet  on the lance, decking does not need lower pressure, just a more careful approach.

Even use the same jet but keep your distance from the wood

[Steve Grocott]

Thanks Mike, I only have a turbo lance and a vario lance so I’ll set my vario to wide.  Fsc no good?

[Mike Halliday]

Yes just set it to wide and do multiple passes rather that try and clean it in one go, I find it when you stop that you get a problem, just start at one end and clean the full length.

A FSC is harder to clean evenly with you tend to get circles as you stop & start but be careful and it can be done

[Steve Grocott]

Thanks Mike, appreciate the advice👍