After his bath sequence in the show. He was running the same bath in the last scene when Eileen was speaking about being pawns in a chess game.

If the editing wasn't bad enough, they now seem to be showing things out of order.

Unless he was running one for his best mate Simon

He might just be washing it out. They also wash their clothes in the bath too,

He was cleaning the bath, as he and Nick had been in it.

It's a common problem with politicians. they have to keep their scales moist.

they are running a lot out of sequence
the other night - they showed Nick first with wet hair (with Joel in the bath , and just afterwards, the same two - Nick had dry hair ( this was supposedly in the same conversation )

to wash off the shame of enjoying man on man sexy bathtime. he feels dirtier than ever, now the bubbles have dispersed and the high of being nearly naked with another man has died down he feels nothing but shame and embarrassment.

he's the captain of the Golgafrinchams 'B' Ark .

.

Well, he has been bathing in the filth of another person.

Watch it back, OP. He had a bottle of cleaner in his hand, he was cleaning it.

Because lying in your own bathwater is dirty enough, let alone someone else's.

I hadn't noticed that one