product 1:

• maintenance: 2 caps/week (a cap is big, looks like ~100ml if i eyeball it)
• clog clearing: 500ml (½ bottle)

product 2:

• maintenance: 25ml/2 weeks
• clog clearing: 300ml (⅓ bottle)

product 3:

• maintenance: 25ml/week
• clog clearing: not mentioned for this purpose

Going from memory I rotated between the products and I think I poured in about ⅓ of the clog clearing doses on the first two every few days… because I was a cheap bastard and just wanted to constantly have the enzymes in there. But yeah, probably a mistake. I think I tried a 300ml dose of product 2 just once. But I probably should have tried a full dose more often.