ive got a diy trolley that I use for windows and gutters it pumps out 2.6l pm spot on for my windows but lacking when comes to gutters so im going to build another one but with a bigger pump, what I need to know is do I want to get a pump which puts out more litres per minute or one with more psi or both, I was thinking about this one any advice would be grateful, also I use diluted tfr on gutters threw a small pressure sprayer but means me going up ladders to spray it I was wondering if running this threw a pump would damage the pump?
http://www.ebay.co.uk/itm/12V-DC-80PSI-70-4-3-L-min-Diaphragm-High-Pressure-Water-Pump-/321044222413?pt=UK_HomeGarden_Garden_PondsWaterFeatures_UK&hash=item4abfba11cd
http://www.ebay.co.uk/itm/12V-DC-80PSI-70-4-3-L-min-Diaphragm-High-Pressure-Water-Pump-/321044222413?pt=UK_HomeGarden_Garden_PondsWaterFeatures_UK&hash=item4abfba11cd