Swim spa - Removing antifreeze from swim spa

[swimmynoodle]

Hi everyone,
I read many threads in here on antifreeze and pools, but cant find any regarding swim spas.
I have a 13' long Barefoot swim spa. I cleaned all the surfaces but am unsure how to remove the antifreeze from the swim spa. I know how to do it with a pool, but are there differences here?

There is no waste option on the swim spa. I do have a garden spigot inside the enclosure at the lowest point of the spa meant to drain the lines. Out of curiosity I turned on my garden hose and pushed it into to one of the four waterfalls (two on each side). Blue antifreeze came out of several jets, but not as much as was put in last winter.


If I were to suck it out, do I have to tape up (plug up) every jet in order to create stronger suction and go jet to jet with my shop vac to suck it out? Can you do damage to the internal parts (pumps, ozone machine, etc) by either sucking/blowing air into the system?

I was thinking as a last resort to fill the spa full with water and then drain it all out thinking that would dilute and remove the majority of the antifreeze but have no clue if thats even a thing to do.

Thank you.

 

[swimmynoodle]

Any thoughts would be appreciated.

 

[Mdragger88]

That’s exactly what i would do - put the hose in the filter area to fill, the water should come out of all the jets, when you think most is evacuated drain the footwell and then fill normally. A little rv style antifreeze left over being heavily diluted won’t hurt anything.
***While antifreeze is good at protecting your spa plumbing from freezing it doesn’t stop nasties & biofilms from growing while it’s been sitting so I would fill then chlorinate & purge the spa with Ahhsome then drain & refill. That would take care of any leftover antifreeze too