Deflating an MSPA Lite inflatable spa is not just about opening a valve and rolling up the fabric. A careless folding weakens the heat-sealed seams, distorts the liner, and can damage the connections of the motor unit. MSpa manuals emphasize a specific protocol for draining, drying, and storing, and failing to follow these steps can compromise warranty coverage.
Motor unit and connections: what breaks when deflating is rushed
Most online guides focus on draining and folding the liner. The real weak point of an MSPA Lite spa is at the connection between the motor unit (or technical unit) and the inflatable tub. MSpa manuals explicitly warn against pulling on the cables or forcibly disconnecting the technical unit.
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During deflation, the motor unit must be unplugged from the power supply before any handling. The manuals remind users of the risks associated with use in humid environments and the proximity of water to electrical components. Removing the unit while water is stagnant in the connections exposes the internal seals to corrosion.
If you follow the MSPA Lite spa deflation guide, you will find that disconnecting the motor unit occurs after complete drainage and drying of the nozzles, never before. This sequencing protects the O-rings and electrical connectors, two parts that MSPA service identifies as frequent causes of returns.
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Draining and drying the MSPA Lite inflatable spa before deflation
Draining is the first concrete step. Connect a drainage hose to the designated drainage nozzle, then direct it to an appropriate drainage point. Water treated with bromine or chlorine should not be poured directly onto the lawn or into a watercourse.
Once the tub is empty, there is still some residual water in the corners and under the liner. Slightly tilt the spa (without flipping it over) to drain this excess. MSpa manuals advise against completely flipping the tub, as the weight of the still-connected motor unit can damage the fittings.
Drying, the most underestimated step
A damp stored liner develops mold in just a few days. After emptying all the water, wipe the inside of the tub with a soft, non-abrasive cloth. Then leave the spa in the open air, valve open, for several hours. In overcast or humid weather, this time may double.
Also check the outer surface: trapped condensation under the spa is a source of degradation for the coating. Lift one side to ventilate underneath before proceeding with the actual deflation.
Deflating and folding the spa without damaging the liner seams
Once the tub is perfectly dry, open the deflation valve. Air escapes slowly. To speed up the process, some users connect a vacuum to the valve, but this method can distort the liner if the suction is too strong. Natural deflation, complemented by gentle manual pressure, remains the safest method to preserve the welds.
Folding requires special attention. Here are the steps to follow to avoid weakening the heat-sealed seams:
- Fold the walls towards the center of the tub along the weld lines, never across. Folding perpendicular to the seams creates stress folds that, repeated each season, can lead to micro-leaks.
- Avoid walking on the liner to push out the remaining air. Instead, use your hands to gradually roll the spa from one edge to the opposite side.
- Roll (do not accordion fold) the tub into a regular cylinder. Accordion folding creates sharp angles that mark the PVC and weaken the coating.
- Slide the rolled spa into its original storage bag. Do not excessively tighten the straps: strong compression on a cold liner stiffens the PVC and can crack the welding areas.
Storage conditions in accordance with MSPA service guidelines
The MSpa manual specifies storage constraints that few users apply. Humidity and temperature of the storage location affect the longevity of the liner. An uninsulated garage where temperatures drop below zero in winter exposes the PVC to accelerated aging.
The ideal storage according to the manufacturer’s guidelines requires a dry place, protected from frost and direct sunlight. UV rays degrade the coating even through a transport bag if it is not opaque.
The motor unit should be stored separately
The technical unit should not be stored directly on the ground in a humid place. Place it on a shelf or elevated surface in a ventilated space. Never store the motor unit with residual water in the conduits. Run the pump for a few seconds before the final disconnection to purge the internal circuits.
Keep the accessories (cover, filters, adapters) in the same bag or nearby. A lost filter between seasons often forces a complete kit purchase, which is an avoidable cost.
Common mistakes that invalidate the MSPA warranty
The MSpa manuals explicitly mention not to return goods directly to the store in case of a problem, but to contact MSPA service. This instruction has a direct implication on deflation: if a liner defect appears after improper storage, the manufacturer may consider that the usage conditions were not respected.
Among the most common mistakes that cause issues during a warranty claim:
- Storing the spa while still damp, which causes mold stains interpreted as a maintenance defect.
- Forcing deflation with a high-suction device, which distorts the walls and seams.
- Storing the motor unit in a humid environment or at extreme temperatures, which corrodes the electrical components.
The manufacturer may change the specifications of its products without notice, as the manuals remind. Checking the most recent version of the user manual before each winterization remains the most reliable precaution to stay compliant with warranty conditions.