Had a collision a few months ago that broke the washer tank. Replaced it but had to remove the headlight washer pump. After installing it back and filling the tank again I noticed leakage from around the washer pump.

Removed it, pushed it down and tightened the clamp. Still leaking.

It does work if I do not fill it up completely, but feels a bit annoying.

Is this a common problem? Do i need to replace the pump? Something other need replacement? Or should I try to refit the pump somehow?