Veronica V

Just installed my new Coleman Salspa today and ran the pump for a few hours to circulate the Bromine. When I came back a few hours later, there was a small puddle under the large pipe coupling. I can feel it dripping. It looks like this pipe goes to the air channel for bubbles. Is there a way to isolate this pipe so I can remove it without loosing all the water? Thank you, Veronica