ENGINEERING TRAININGLevel 17 outdoor whirlpool · Hot tub system

LOADING 3D MODEL

ENGINEERING TRAINING · POOLS & SPAS

How our hot tub works

The Level 17 outdoor whirlpool and its pump room, opened up as a cut-away model. Follow the water from the tub, through the pump, filter, heaters and chemical feed, and back again.

1,054 US gal47 USGPM26-min turnoverMax 8 bathersMax 104 °F

01/ 13

OPERATOR CHECK

SYSTEM RUNNING

RECIRC FLOW · FM1

0USGPM

FILTER PRESSURE

0psi

clean ≈ 10 psi

WATER TEMP

—

TURNOVER

—min

design 26 min

FREE CHLORINE

—ppm

target 3 – 6

pH (controller)

—

target 7.2 – 7.8

ORP (controller)

—mV

—

WATER LEVEL

0cm

0 = middle of skimmer

RECIRCULATION PUMP

Recirc pump (½ HP)Runs 24/7. Filtering, heating and dosing all need its flow

MULTIPORT VALVE · TURN THE PUMP OFF FIRST

👆 Tip: tap any valve handle in the pump room to open or close it.

SUCTION VALVES AT THE PUMP

Skimmer line (2")Right-hand valve

Main drain line (2½")Left-hand valve

HEATING

Boiler hot water to the plate exchangerYellow shut-offs on the primary lines

Auxiliary electric heater1.5 kW, tops up the heat

SetpointMaximum 104 °F (BC rules)

103 °F

Temperature units

JETS (BOOSTER PUMP, 2 HP)

Jet timerOff

0 USGPM

WATER & BATHERS

DHW top-up · red valveDomestic hot water (~115 °F). Keeps the tub hot while you top up

Cold make-up · blue valveCity cold water (~50 °F). Cools the tub, slow to reheat

BATHERS IN THE TUB

CHEMICAL CONTROLLER · HAYWARD (HCC 2000 per drawings)

pH priorityChlorine feed waits while the pH channel is in alarm or pH reads high

Overfeed timerA channel feeding non-stop this long trips an alarm and stops

60 min

SIMULATION SPEED · Day 1 · 08:00

Water flowMoving water inside clear piping, colour-coded

See-through wallsGhost the pump room and chemical room walls

See-through deck & slabShow the piping under the patio and around the tub

Cut-away equipmentLook inside the filter, pumps and heat exchanger

LabelsName tags on the main equipment

EveningDusk sky, tub lights and pump-room light

Temperature unitsFahrenheit or Celsius everywhere

Jet soundRumble and bubbling while the jets run

FLOW COLOURS

Find the fault

A hidden problem is put into the system. Watch the readouts and the model, work out what's wrong, then fix it from the Operate tab.

GUIDED PROCEDURE

Do it on the model: tap the valves and the multiport handle in the pump room, or use the Operate tab. Steps tick off as you go.

OR PICK A FAULT

Check your knowledge

Score: 0 / 0

Recirc 0 gpm

—

Jets off

—

Representative layout built from the Level 17 whirlpool drawings and pump-room photos. Always confirm against the equipment nameplates and the Pool Operation Plan.