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LTR20091024, Rev. A
19
In-Ground Plumbing Connections
IMPORTANT! Always check local codes prior to any in-ground spa instal-
lation.
Once the spa and equipment are properly located, you will want to lay out
the plumbing run.
Trenches should be deep and wide enough to allow all pipes to be buried
below the frost line and should be in as straight a line from the spa to the
equipment as possible. Check local code requirements for underground
pipes. Always know what is under the ground before you dig anywhere.
You will need 2” ex or PVC lines for your suction, intake, and air line. In
ground spas have marked intake and suction lines, making it easy nd and
connect to and from the spa and equipment pack.
The plumbing run should not be any longer than 15 feet to maximize
water pressure. Another way to maximize water pressure is to limit (or
even eliminate) the use of 90˚ elbows in your plumbing run. A more direct
plumbing run using 45˚ elbows is more efcient, and promotes increased
water pressure.
Identifying Plumbing Lines
The spa’s plumbing lines are clearly marked during water testing at the
factory. This is done to assist installers in properly identifying the installa-
tion. We still recommend that the installers verify plumbing lines prior to
gluing. This can be done by using one of the following techniques.
Air Test
The air test requires a wet/dry vacuum. Locate the plumbing line you
wish to identify and secure the vacuum hose to cut open end. Turn on the
vacuum, enter the spa and listen for vacuum suction sound from inside
the spa side lter canister. If you hear the suction sound in the canister,
the line is properly marked and can be connected to the suction side of the
pump on the equipment pack.
Water Test
The water test requires a garden hose and water source. Locate the
plumbing line you wish to identify and secure the outlet side of the garden
hose to cut open end. Turn on the water supply to the garden hose, enter
the spa and look for water inside the spa side lter canister. If you see
water in the canister the line is properly marked and can be connected to
the suction side of the pump on the equipment pack.
If any plumbing line is not properly marked or not marked at all, follow
either the air or water test procedure until all lines are identied prior to
gluing.