Jump to content

Blowing out pump seal


Mx495

Recommended Posts

Have an older hot tub. Put new control panel and pumps in about 8 years ago. Moved to new house. Used it only a few times after move being so busy. Sat a lot. Filled after being winterized. Ran fine on circulation and low speed. Turned on high speed and pump seal blew out of the 2 speed pump. Installed new pump. Loosened joints after fill to bleed. Turned it on, same thing. As soon as I turned on high speed blew the seal. Got a new seal and installed it in the newer pump. Made sure all the air was out of the lines. No big air leaks that I can see. Tub has no in line shut off valves. I’m at a loss. Don’t want to buy another pump for the same thing to happen. Thanks for any ideas or advice. 

Link to comment
Share on other sites

  • 3 months later...

Mx495,

Were you able to determine what was causing this? I recently replaced a jet pump on my spa and I'm having the same issue where the seal blows out the back of the wet end. Usually it survives the first start, but if I turn off the pump and turn it on a second time, there is a clicking sound followed by water gushing out of the back of the wet end. I've tried a few different things and I'm still having the same problem with brand new pump and seal.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...