recently purchased a dosatron for hypo. This in turn presently is connected of 1/2 hose with a gun for open spaces like driveways etc however, for more detailed WFP type work I need to reduce this further to 6mm wfp hose. I'm using rectus fittings but they give after a while and I don't want the leaks and drips. I've in the past used hozelock fittings reduced down but not comfortable using those either. What are you guys using? Or is it a case of renewing frequently enough so that I don't get the leaks etc?