Mishnayos Maasros Perek 5 Mishnah 6

המתמד – if he places water on the exterior shells and on the interior pomace or on the lees/sediment, it is called מתמד/making pomace wine putting water on by measure, and finds – after pressing - the same quantity. But here we are speaking with place waters specifically on the lees/sediment.

ומצא כדי מדתו – not exactly the same measure, for even if he placed three jugs of water and found three-and-one-half [jugs], he is exempt [from tithing]. For the taste of the lees/sediment of eatables forbidden prior to the setting aside of priestly gifts is not considered a complete taste but rather merely an acrid taste.

רבי יהודה מחייב – for he holds that it is impossible that all of the water would depart outside, but rather, half-a-jug of water would remain within the lees/sediment, and it would be found that these three-and-one-half jugs that left, they have within them one jug of wine and two-and-one-half of water, and they would be like mixed wine, for it is the manner of mixing wine. But the Halakha is not according to Rabbi Yehuda.

מצא יותר מכדי מדתו – and this is removing three and finding four.

מוציא עליו ממקום אחר – even from another place, meaning to say, that there is no question from this and requiring it – that is permitted, but rather, even from another place, one is able to tithe according to the percentage of the surplus of the measure.