You may need to adjust the cal on your controller, i have 100m of microbore and fan jets. Controller on about 40 and they work great
thanks, I have just done that and cleaned my own windows on full flow , no different ! (battery is fully charged and good)
Sorry if the post title is a little misleading but the problem definately seems to be with the vyair pump.
If others can use a flow of 40 with microbore and get a good spray from fan jets then that's all it can be.
The pump is 2+ years old, now I think about it has been taking longer to fill the backpack via the pump than it used to
changing to fan jets and a new backpack has only highlighted the problem for me.
Time for a new pump, flojet or shurflo ?
Simon