Hot Spring

Hot Spring spa and hot tub parts

Hot Spring is a name most owners will recognise from the label on their hot tub cabinet or from the moulded markings on the jet faces inside the shell. Like any heated, chemically treated water system, a spa is built from a long list of small sealing and wearing components, and those are usually the parts that need attention long before anything structural does. Here we list the Hot Spring components held in stock, so that a worn seal does not have to mean a call-out or a guess at a generic substitute.

At present the selection here is focused rather than broad: a single sealing part, listed as the gasket for Hot Spring 31987 jets under reference 10437. That is a deliberately narrow listing rather than a catalogue of everything the brand has ever produced, and the description below is written around what that part does and how to confirm it is the one you need.

Wat het assortiment omvat

Spa jets are assemblies rather than single mouldings. A typical jet consists of a body that passes through the acrylic shell, a retaining nut or wall fitting behind it, an internal rotating or directional insert, a decorative face ring and one or more seals that keep water on the correct side of the shell. The seal is the component that is sacrificed over time, because it is squeezed permanently between two rigid plastic parts in hot, chemically dosed water.

• Jet gaskets and seals — the flat or profiled sealing rings that sit between the jet body and the shell or between the jet body and its housing.
• Part-number referenced items — listings tied to a specific jet reference, in this case 31987, so that the fit is defined by the jet rather than by a general size description.
• Single-item replacements — parts intended for repair of an existing installation rather than for building a new one.

Why jet seals fail

Hot tub water is a demanding environment for elastomers. Temperatures are held high for long periods, sanitiser levels are maintained continuously, and the seal is under constant compression with no chance to recover. Over several seasons the material loses elasticity, takes a permanent set in the shape of the groove, and begins to weep. The first symptoms are usually subtle: a damp patch in the cabinet, a slow drop in water level that cannot be explained by evaporation or splash-out, or a faint trickling sound when the pump is running.

Flushing a system with a pipe cleaner, draining and refilling, or leaving the spa empty in strong sunlight all accelerate the process, because the seal dries out and shrinks slightly before being compressed again on refilling. Replacing a tired gasket is far cheaper than chasing the leak further down the line, and it is work that can usually be done with the water dropped below jet level rather than with a complete drain-down.

Identifying the right gasket

Sealing parts are easy to order incorrectly, because two rings of similar diameter can have very different cross-sections. Work from the jet reference first and from measurements second.

• Check the jet reference — the number 31987 identifies the jet family this gasket is listed against. If your paperwork, service record or an exploded diagram for your spa shows that reference, the match is straightforward.
• Remove and inspect the old seal — note whether it is a flat washer-style gasket or a moulded profile with a lip, and whether it was fitted in front of or behind the shell wall.
• Measure before it distorts — take the outer diameter, inner diameter and thickness of the removed seal while it is still intact, using a vernier where possible.
• Tel wat je nodig hebt — a spa with a bank of identical jets will normally have one gasket per jet, and replacing the whole set at once avoids repeating the job next season.
• Bewaar het oude onderdeel — until the replacement is in place and the system has been run and checked, the original is a useful reference.

Hot Spring at PoolParthub.com

Here you will find Hot Spring spare parts selected for repair work rather than for display: the sealing components that keep a working spa watertight, listed against their own part references so there is no ambiguity about what is being ordered. The current listing is the gasket for Hot Spring 31987 jets, reference 10437.

Stocking parts by reference number rather than by vague description is the most reliable way to help owners and service engineers find a match. If the reference on your exploded view agrees with the one in the product title, the part on this page is the one that belongs in your jet.