Possibly answered elsewhere, apologies if so... My windscreen washer only seems to work on the passenger side. It's weak, but it hits mid screen no problems. On the driver's side it barely clears the wiper's resting position. It's the same pump providing a feed to both jets, so what could the issue be? Surely the vacuum in the plumbing would be balanced, so both sides being the same strength/weakness? I've made sure the jets aren't blocked at the nozzles. Any advice would be appreciated and thanks in advance for your time.