[CLEANCARE WC]

Anyone know why I cannot post Immage shack pics here ?
No Steve I use an ott manifold the jets are above the brush and plastic. The brush that scratches was a mono Addis.

NOT SURPRISED THATS FOR SWEEPING FLOORS

[GB Window Cleaning]

Yes thanks GB that is interesting reading from what I can make out plastic =flocked then

thats sounds like a good conclusion to me sir!  mono = normal glass only. flocked = everything else, including self cleaing glass, plastic etc...

now just one more thing (as columbo once said  )  where does tempered glass fall into this lot? 

[mci services]

  as far as I know tempered or toughened mono is fine the only difference with tempered is when it breaks it shatters and holds so isn't dangerous. but make no odds on how you clean it.

but just to put a dampener on things doesn't flocked brushes hold dirt and grit so again could cause scratching

[richard jagger]

I don't believe the brush will scratch plastic ,but the grit cough between the brush filament and the plastic or polycarbonate will scratch.As this will not float on the pure water surface and the ploy.Using a soapy lather would lift the grit off the poly or glass imo.

[richard jagger]

Due to the flatter angle of connies the water will not flush dirt and the speed of rinsing is much slower the window glass. Therefore I use a lather soap and tfr then rinse with a hose of tap then pure rinse after.

[GB Window Cleaning]

as far as I know tempered or toughened mono is fine the only difference with tempered is when it breaks it shatters and holds so isn't dangerous. but make no odds on how you clean it.

but just to put a dampener on things doesn't flocked brushes hold dirt and grit so again could cause scratching

could do i suppose stu, i check my flocked brush very regularly. normally everytime i collapse the pole!

[GB Window Cleaning]

Due to the flatter angle of connies the water will not flush dirt and the speed of rinsing is much slower the window glass. Therefore I use a lather soap and tfr then rinse with a hose of tap then pure rinse after.

this sounds like a very interesting method. so your saying you dont hardly use a brush at all? you use a low presure water jets on tfr/soap to clean off the big stuuf then brush and rinse? very interesting!