[Cookie]

I knocked one of those UPVC door drainage caps off a customers door today..... They seem to come loose off windows & doors quite easily in my experience.

I see they sell these on eBay:
http://www.ebay.co.uk/itm/10-x-Drain-Caps-weep-hole-drainage-covers-Upvc-windows-/110566496370?var=&hash=item19be46d872

Are these always a standard size or do they differ between UPVC manufacturer?

[DaveG]

Yes, they will be fine. I always have some in my van 

[SeanK]

Yes they get brittle in the sun, thanks for the link need some for my own property.

[SeanK]

Just be careful around vents, they can be worse and more expensive to replace, I sort of know what types of
vent that are prone to this and tell customers in advance that I don't replace should they fall off.

[Cookie]

Yes, they will be fine. I always have some in my van 

Thanks Dave. I have just ordered a set off eBay. Certainly something useful to keep in the van.