02 grandee no bubbles?

[jfish63]

My hot tub blew a board the power in and heater relay board. So when I picked up the board I also picked up a new ozonator.  Both parts are hot spring parts from a local dealer. I get everything replaced and turn the power on but no bubbles.  I replaced the ozone injector, tried the vinegar trick but it would not suck it up. I used a can of air to blow through the tube and bubbles came pu in the tub. I took the filter off thinking a clogged filter could  be the cause. Still no bubbles, could my circulation pump be weak? The water is too cold to get in and check.
As soon as I can that is the only thing left that I can think of. There is 110v going to the circ and you can feel a little vibration but no noise.
Thank everyone in advance.

[Vinny]

Is the check vavle in correctly? Is the venturi in correctly? Both of these are one way.

[jfish63]

yes the orientatio of those parts are the same as before. The air went through with no problem.

[jfish63]

Jumped into the tub and without bubbles coming up there is not much flow into the tub. There is hardly any ripple on the surface and removing the filter didn't make a difference. One thing I forgot to mention. I disconnected the ozone hose before the above water loop and stuck it directly into the vinegar and it didn't get sucked up from there. There is a slight sucking sound when you remove the connector from the injector. As a last resort I changed the injector out for the new one that came with the ozonator.

[soak-king]

Jumped into the tub and without bubbles coming up there is not much flow into the tub. There is hardly any ripple on the surface and removing the filter didn't make a difference. One thing I forgot to mention. I disconnected the ozone hose before the above water loop and stuck it directly into the vinegar and it didn't get sucked up from there. There is a slight sucking sound when you remove the connector from the injector. As a last resort I changed the [glow]injector[/glow] out for the new one that came with the ozonator.

Injector or check valve? If it didn't suck the vinegar then I think your injector may have a calcium build up. If you remove the small ozone line from the TEE after the heater and shut off the power to the spa (so the circ pump shuts off) it should let water leak out. If it doesn't you might have to get an eye dropper or syringe and put some vinegar directly into the TEE and let it sit awhile to dissolve the build-up. once it starts to leak a bit then try putting the heater / ozone TEE back together and letting it pull the vinegar from the hose.  

[jfish63]

After I found out it wouldn't suck up the vinegar I tried that. Then I put in the new injector that came with the ozonator. Still no change.
I am running out of things to try before throwing more money at the problem. I also disconnected the check valve and tried to suck up the vinegar before it gets as far as the check valve no difference.

[Chas]

drop you pH to around 7 and keep it there for several days.

If your circ pump is coated with calcium it can reduce the flow, and dropping the pH should clear it out.

 8-)

[hottubdan]

drop you pH to around 7 and keep it there for several days.

If your circ pump is coated with calcium it can reduce the flow, and dropping the pH should clear it out.

 8-)

Couldn't he take circ pump apart and clean it?

[stuart]

Couldn't he take circ pump apart and clean it?

He could but dropping the ph is easier and also might clean the Mazzei injector.

Your injector will look like one of these



this is your ozone check valve

[hottubdan]

Is there a recommended pH level for this procedure?  How low can you go?  For how long?  Any possible side effects?  

[stuart]

Leave the PH down to about 7 for around a week. This shouldn't affect anything else unless you leave it that way for a long time.

[jfish63]

The check valve and injector had been eliminated in a previous post. I am going out right now to lower my ph.