Got people doing building, pool and paving. Started end November, work not up to standard, work only 15% in progress. Do not answer calls. Desperate for advise please!

SOURCE: I am trying to clean my block paving using my

Hello Sue, you don't say where in the world you live, but if you are attempting to clean dirt and algae off pavers, you need to add a solution to the water jet via the inbuilt attachment. Mix a fairly mild solution of bleach and detergent, pus a dash or deodoriser to the cantainer. Put your karcher on low pressure and give all the blocks a good wetting. Do this in the morning so the solution doesn't dry. After 20 ~30 mins, Claen off with the Karcher on normal high pressure (not the tubo lance). HINT: Leave the trigger on all the time and don't stop and start using it. This will prevent hayraulic hammer which can split the pump head.

Testimonial: "Thank you for your speedy response and advice. I will certainly give it a try. Sue,from West Mids, UK"