Since going WFP 18mnths/2yrs ago, I’ve encountered 2 ‘problem’ window panes (in different properties) – one of which always dried ‘streaky’ and the other that always dried ‘spotty’. The only way to leave them ‘perfect’ was to ‘squeegee’ off the water before it dried.
Out of morbid curiosity, I determined not to resort to using anything other than pure water and see how many cleans it took for them to ‘come up properly’.
The ‘streaky’ one took approximately 6 cleans (during which I scrubbed furiously – but to no avail).
The ‘spotty’ one was left clean for the first time today – after its TENTH clean.
Is this a record?
Would a good brushing with TFR, or similar, have made any difference?
Mike