frozen up.Well, water won't come through anyway.Any suggestions?Hot water doesn't seem good idea to me.

 

The antifreeze screenwash stuff that petrol stations sell works well.
Use lots of it regularly


Leave your engine running for a while, you could use a hairdryer to speed up the process of defrosting, then empty the entire contents of the screen wash.


The refill using lots of the screenwash stuff. Make it stronger than needed.

 

Knew it was a stupid question.

 

A question is never stupid if you genuinely don't know the answer.

 

I add a little meths to the mix - seems to do the job most of the time, unless it is really cold.

Can you get heated aftermarket jets anyone know?

 

Yes you can.

You can also get a heat exchanger that warms the water en route.
Think there is at least one set on Ebay right now.

 

I picked up some for an MGF last year for a previous car, never got around to fitting them - cost me a tenner brand new

 

The only really stupid question is the one never asked, in my opinion.

 

Might be just my sense of humour but Ithink you make all these up for my benefit.

 

I tend to agree with that!