I am having problems currently when using both w/b undercoat and gloss with a lot of bits in the paint. I have used the paint from the tin and have passed it through a kitchen sieve into a paint kettle but the bits were still there. It's Johnstones Aqua by the way. I'm now wondering whether there are bits in my paintbrushes although I always clean the brushes well after use.
Any ideas?
Any ideas?