[Mike #1]

just priced house with diamond shaped leaded windows the ones with individual pieces of glass windows are original windows on old house , wanting to clean with wfp is it possible without water getting in , windows are bowed in , in places

[adixon]

had a couple a while back i explained to the customer that they might leak one job was ok with it and one i lost i think if you let them know then they cant get that upset and then its down to them
the thing is they will be a bit wobbly so you cant really press on that hard i tend to steer well clear but you know what state the windows are in

andy

[Mike #1]

i will be using a gardiners sl flocked brush so i no i can minimise pressure on glass my my main concern was leakage , did you get leakage on your's and how much

[GWCS]

you will get leakage, you will need to have someone inside mopping up or get to do the inside job too so you can mop up the insides after doing out.

[elite mike]

i do a few really old churches, you got to go very gently 

you will get a bit of leakage 

i use a supalite single trim works well for me

[Mike #1]

thanks for that lads i will probably pre-warn custy

[[GQC] Tim]

Yea they will most likely leak. Some panes won't leak that badly, some will.

Turn the pressure and flow down a bit. Also, it will take a while for all the dirt to get out of the gaps in the lead, they won't always come up 100% well in the first couple of cleans.