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Older style tubs have a pressure switch usually mounted directly on the heater manifold, or attached to the Plumbing. The pressure switch is connected to the spa pack/circuit board with 2 wires and shuts the heater off if there is not enough pressure in the heater tube/manifold to protect the heater from becoming damaged or even exploding or causing a fire in a dry heater condition.
Newer spas that use Balboa controls have sensors built right into the heater so a pressure switch is no longer needed as the safety function of monitoring the heater for constant water pressure is now all performed within the heater on newer quality spas.
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Can you bypass pressure sensor on a jacuzzi hot tub?
Yes
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How far away should the disconnect switch be located from an exterior hot tub?
5 feet
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THE HOT TUB IS TO RELAX
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Pool chemicals in a hot tub?
What about "pool chemicals in a hot tub"?
How much does a hot tub cost?
for a luxury hot tub it is 15,000
How long do hot tub covers last?
Hot tub covers can have long lives if they are cared for properly. Hot tub covers are mostly affected by dirt and sunlight so keep it clean and perhaps put a tarp over it if the hot tub is in direct sunlight.
How expensive are hot tub covers?
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