H
hmtiling
For me with porc I'm edging towards Ultra. 3000 give more time to play but ultra seems to suit me the best being somewhere in between 3000 and ucp.
Not something I have done, having said that I don't do much grouting, 95 per cent of my work is commercial and very large floors and the grouting is done for me. On the occasions I do grout especially with ultracolor plus I mix it as per the recommended water content but have never shaken the bag, it's opened and straight n the bucket.I thought giving the bag a good shake was part of the mixing instructions? it's something I have always done with all grout and must have seen it on a bag somewhere.
Had the same problem with mapei grouts for years ie drying patchy. Next time try giving the bag a good shake to ensure it's thoroughly mixed prior to using it. We have been using grout supplied by porcelanosa recently which is actually mapei ultracolor plus slightly modified by porcelanosa, we mentioned problems with shade difference and we measure the water content with every mix. The rep says the contents of the bag should be mixed thoroughly prior to mixing, I never knew this but give it a try there's nowt to lose.