Determine your size for laundry sinks
The Flex P-trap can be used in all situations under the sink as a p-trap and as a connecting tube between parts. Because of this, you have to determine the size (length of tube) or cut the tube yourself. The tolerance for measurement is ±0.5 inches.
- First, you have to choose one position from Fig.43 - Fig.45
- Second, you have to measure dimension JK or A, H, G.
- Third, you choose length L from bottom drawing and measurement.
1.The drain in the wall - Flex P-trap Full
H- length of tailpiece (1.50 inches outside diameter).
A- distance from bottom of sink to drain (1.50 inches inside diameter).
G-distance from tailpiece to wall in plan of U shape of p-trap
See the Fig.33A G=8-10 inches
G=10--14 inches
Fig. 43 (video)
For A-H=0 G=14
L=20 inches—Flex p-trap, 3-4 inches water seal E=3-0 inches left, right
L=22 inches—Flex p-trap, 4-5 inches water seal E=4-0 inches left, right
L=24 inches—Flex p-trap, 5-6 inches water seal E=5-0 inches left, right
Lmax= 24 inches—Flex p-trap, over 4 inches deep
If you move the end of the p-trap to the right, left or down the water seal will decrease, but if you move it up the water seal will increase.
Adapter can be used over 16 inches length.
Measurement
Our converter formula was specially designed to make you figure out your job a lot easier. Measure distance JK in space and length of Flex p-trap will be:
L=JK+10”
J—end of tailpiece
K—bottom of drain
2. The drain in the wall CP-trap
See the Fig.34A
CP- connector tube with p-trap
G=4—14 inches E=0-4
E--eccentricity
H—length of tailpiece
For G=4—10 inches, see the bathroom sink
For G=14 inches and E=0
Lmin = G+6=20 inches
Fig. 44 (video 23A, video 23B)
For H-A=2 G=14
L=20 inches—Flex p-trap, 3-4 inches water seal E=3-0 inches left, right
L=22 inches—Flex p-trap, 4-5 inches water seal E=4-0 inches left, right
L=24 inches—Flex p-trap, 4-5 inches water seal E=4-0 inches left, right
Adapter can be optional.
Measurement
Our converter formula was specially designed to make you figure out your job a lot easier. Measurethe distance JK in space and the length of Flex p-trap will be:
L=JK+8”
J—end of tailpiece
K—bottom of drain
3. The drain in the floor - SP-trap
See the Fig.35
Fig. 45 (video 24)
SP-trap (s-trap with p-trap)
G=4--14 inches
Ex= extension (distance between two adaptors)
L=Ex+(A-H)+16
For Ex=0 A-H=0 Gmin=8
Ex=G-8 over Gmin=8 inches you need to add extension
Smin=3 inches, water seal
For A-H=0 G=14
G=14 L=26
Ex=6
In order to eliminate the siphoning, the minimum extension has to be Ex=2Dia=2.5
Measurement
Our converter formula was specially designed to make you figure out your job a lot easier. Measure the distance JK in space and the length of Flex p-trap will be:
L=JK+16”
J—end of tailpiece
K—bottom of drain
