How to Drain/Winterize Your Hot Tub
Your Hot Tub was designed to drain well when
you use the built-in drain. But several
areas may not drain as well as it should so you need to give
First, Drain the spa and remove the
inside the footwell of the hot tub. The footwell is simply where
your feet go when you are in the spa. Its the lowest point of
your spa with easy access. Remove as much water as you can. This
typically drains most/all of the piping.
Second, depending on your hot tub,
you have 1-4 pumps to be concern about. On each pump loosen the
front fitting where the pump mates with the hot tub plumbing. On
some pump/wetends you will see a
drain plug on the bottom of the pump face.
By loosing this plug it allows remaining water to
drain inside the pump/wetend. Failure to
drain your wetend can result in a damaged wetend. Water expands
when it freezes and this can crack you pump/wetend.
On spas with a smaller
circulation pump you have to pull the hose
off the front of the pump. There will still
be water in many pumps so if the weather is
cold in your area, a wet vacuum can be used
to suck the remaining water out of the pump.
heater. Loosen one or both fittings to the
heater to allow the water to drain. If you
find no water dripping out when you loosen,
wiggle the hose/connection to break a possible
seal to allow water to drain.
homeowners will take their wet vacuum to
each jet and suction fitting on the water
side and suck any remaining water out of the
piping. This or blowing air into the fitting
is what a professional hot tub service company
visually look at the lower piping of your
spa to imagine
if all the water is drained. If you can see
where the water would drain to, you should
be good to go. A common area for the water
NOT to drain are manifolds that are flat on the bottom
pan of the hot tub. You must allow the water to drain these
manifolds or they will crack when the weather gets cold.
Antifreeze: There is available to the service company a product
that is basically antifreeze for the hot tub. This is used
liberally to fill areas that might have water remaining to
lesson the change of freezing. IF you purchase such a product
make sure its made for Hot Tubs/Swimming Pools.