Footbath Basin
Design a mortar bed footbath basin using typical shower basin fabrication methods and materials. Carefully
study the following while designing your basin.
•
Basin size and shape.
We recommend a room size approximately 60
″
(152.4cm) long x 48
″
(122cm)
wide x 84
″
(213.4cm) high. The basin design must provide for a water depth of at least 3
″
(7.6cm)
above the top of the suction cover. The threshold should be 6
″
(15.2cm) to 7
″
(17.8cm) above the top
of the suction cover. Position the drain overflow so it will produce a minimum water depth of 3
″
(7.6cm) above the top of the suction cover. The basin should have a water capacity between 90
gallons (341 L) and 200 gallons (757 L). The size of the basin will affect the amount of hot water
needed each time the user fills the footbath basin. Ledges, seats, shelves and steps will enhance the
character and functionality of the unit, but may slow down the return of water to the basin. The
user may need to add more water to fill the basin before use.
•
Floor pitch.
Incorporate a finished floor pitch of 1/4
″
(6mm) to 1/2
″
(1.3cm) per foot (30.5cm)
toward the drain to provide efficient drainage.
•
Finished floor material.
The floor material must be slip-resistant tile or stone to reduce the potential
for accidents caused by slipping. Various materials offer different heat-retaining properties.
•
Desired drain location.
The drain should be no more than 48
″
(122cm) from the drain overflow
elbow. Design the basin so the combined thickness of the subfloor, cement board, waterproofing
material, mortar bed and finished material does not exceed 1-1/2
″
(3.8cm) at the drain if the K-7179
drain is used. For the K-7179 drain, the combined basin wall thickness must be between 3/4
″
(2cm)
and 1-3/4
″
(4.4cm) where the drain overflow will be installed.
•
Suction location.
The center of the suction cover must be located between 2-1/2
″
(6.4cm) and 3-1/2
″
(8.9cm) above the finished floor.
1030218-2-A
10
Kohler Co.
