||A large percentage of water problems
reported to us by spa owners can easily be corrected by the proper
application of shocking compounds. We'll explain the different
recommended types, and the right way to
What is Shock Treatment?
Shocking a hot tub spa is the application of an
ample dose of chlorine (sodium dichlor) or non-chlorine shock (potassium
monopersulfate or MPS). One purpose of this treatment is to
break-down organic waste contaminants which cause odor and cloudy
water. After treatment, water quality and clarity is often
If irritating chloramines are present, shocking
also converts them back to active chlorine. If bromine sanitizer
is being used, shocking activates the bromide ion (which by itself has
no disinfecting capability) which becomes hypobromous acid in
water, a good sanitizer. Both of these shocking products are
100% compatible with the alternative sanitizer systems that we offer.
Regardless of which sanitizer system you use,
periodic shocking is essential for clear, clean hot tub water. It
will also allow your sanitizer to perform at peak efficiency.
Note: These products are not compatible
such as Baqua® which we do not support.
Non-Chlorine Shock - regular use for
||Non-chlorine shock is monopersulfate
compound, often called MPS for short. It is an oxygen-based
shock, preferred by many because it has little or no odor.
brand non-chlorine shock is 100% compatible with chlorine, bromine,
Cleanwater Blue, Nature2 and Frog products, as well as dichlor
shock. It is the ideal
primary shock to use with these products on a regular basis.
Although not classified as a sanitizer, non-chlorine shock does
oxidize contaminants and greatly improves water quality and clarity.
Dichlor Shock - occasional use to clear up
||Dichlor shock is a form of
often called sodium dichlor. Technically it's both a sanitizer and
a shock, although we do not recommend chlorine as a primary
sanitizer in spas.
is 100% compatible with bromine, Cleanwater Blue, Nature2 and
Frog products, as well as non-chlorine shock. It is recommended for use as a startup shock with
these products, and also for occasional use to correct water problems
Shocking with dichlor (sometimes referred to as
superchlorination) is the fastest and easiest
way to clear up many water problems such as musty odor, cloudiness,
slimy water, algae, etc. Note: dichlor should always be
pre-dissolved in a plastic bucket of water prior to addition to spa,
to avoid possible damage to acrylic surfaces or vinyl liners.
When to Shock
||It is a good practice to shock with dichlor
when you refill your spa. After that, regular maintenance can normally be accomplished with non-chlorine shock.
Other times for shock treatment would include:
prior to, or just after a party or other period of heavy use, when the
spa has been neglected, or when restarting a spa that has not been
used for some time.
Whenever your regular dosage of non-chlorine shock seems to need an
extra boost, dichlor will usually provide it and clear up problems.
Read more about the
method for hot tubs with severe, persistent water quality issues.
With Alternative Water Purifiers
Many people have switched to
purification systems such as Cleanwater Blue or Nature2 to get
away from chlorine. It is still a good idea to start these
systems with a dose of dichlor. This ensures a clean start and
will help prevent problems from pre-existing contamination, that would
otherwise put a high demand on alternative products. Dichlor also
the quickest way to fix problems after a heavy bather load.
If you don't like chlorine, do not despair.
Remember that with the cover open, jets running, or exposure to
sunlight, that occasional chlorine dose will dissipate fairly quickly.
With alternative sanitizers, OxySpa non-chlorine
shock will be your primary maintenance compound, and in many cases
users rarely use dichlor after the startup dose.
The amount of shock to use will depend on the
bather load, and which water sanitization system you have chosen.
Refer to our
& Maintenance Guide and read all product package directions for more information.