SPA MAINTENANCE PROCEDURES
FILTER MAINTENANCE
The spa filter is one of the most important maintenance items of
a spa. The filter is there to remove debris from the water and
needs to be cleaned on a regular basis. Failure to do so may
result in poor performance, poor water clarity and could prevent
the spa from heating. Filtration starts as soon as flow is steady
through the filter. As the filter cartridge removes the debris from
the spa water, the accumulated debris causes flow resistance.
CLEANING AND REPLACING FILTER CARTRIDGE
Your Oasis spa filter has been designed for quick and easy
maintenance. The filter cartridge should be rinsed by hose once
a week and cleaned with a cartridge cleaner once a month. A
second filter cartridge is recommended and will speed up this
process. This can be purchased from your local dealer.
TOP LOAD FILTERS
• Turn the power OFF at the breaker.
• Loosen air relief valve, then remove retainer ring.
• Pull filter lid straight up to remove.
• Do not twist or pull the filter lid up at an angle. This
could cause damage to the filter canister, especially in
freezing conditions.
• Remove filter cartridge and clean with a garden hose and
a high-pressure nozzle. Periodically you may need to
soak your filter in a “cartridge filter cleaner” to remove
excess minerals and/or oils.
• Rinse filter thoroughly before installing. Clean the O-ring
on filter lid and apply a light film of silicone lubricant to the
O- ring. Do not use petroleum-based lubricant as it could
damage the O-ring. Consult your authorized dealer to
purchase suitable lubricant.
• Place clean Cartridge in filter canister.
• Replace filter lid and re-tighten retaining ring (finger
tight only). Note: Make sure the O-ring is on the air relief
valve and is finger tight prior to starting the pump. This
O-ring should periodically be lubricated with a silicone
lubricant.
• There is a 3/8” clear line coming from the filter area, and
this goes to the bottom corner of the spa. This drains
all the water from around the filter canister.
• This is a good time to check the skimmer basket. Bring
skimmer door (weir) forward and unscrew basket. Clean
out debris and reinstall.
WATER QUALITY MAINTENANCE
Maintaining the quality of the water within the specified limits will
serve to enhance your enjoyment and prolong the life of the
spa’s equipment. It is a simple task, but it requires regular
attention because the water chemistry involved is a balance of
several factors. There is no simple formula, and there is no
avoiding it. An indifferent approach to water maintenance will
result in poor and potentially harmful conditions for soaking and
even damage to your spa investment. The most important thing
to keep in mind is that preventing poor water chemistry is much
easier than correcting poor water chemistry. For specific
guidance on maintaining water quality, consult your authorized
dealer who can recommend appropriate chemical products for
sanitizing and maintaining your spa.
MAINTAIN HEALTHY SPA WATER
Important! When maintaining your Oasis spa’s water chemistry,
ensure that your cover is removed during any aggressive
treatments to allow for dissipation into the air. Take care to
remove the cover slowly and let chemicals deplete if you are
uncertain if your water is properly balanced.
Always maintain your Cascade Spa’s water chemistry within
the following parameters:
pH: pH is a measure of relative acidity or alkalinity of water and
is measured on a scale of 0 to 14. The midpoint of 7 is said to be
neutral, above which is alkaline and below which is acidic. In
spa water, it is very important to maintain a slightly alkaline
condition of 7.2 to 7.8. Problems become proportionately severe
the further outside of this range the water gets. A low pH will be
corrosive to metals in the spa equipment. A high pH will cause
minerals to deposit on the interior surface (scaling). In addition,
the ability of the sanitation agents to keep the spa clean is
severely affected as the pH moves beyond the ideal range.
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