,QVWDOODWLRQ,QVWUXFWLRQV
7+(50$/(;3$16,21
'HWHUPLQHLIDFKHFNYDOYHH[LVWVLQWKHLQOHWZDWHU
OLQH,WPD\KDYHEHHQLQVWDOOHGLQWKHFROGZDWHUOLQH DV
DVHSDUDWHEDFNIORZSUHYHQWHURULWPD\EHSDUWRID
SUHVVXUHUHGXFLQJYDOYHZDWHUPHWHURUZDWHUVRIWHQHU
$FKHFNYDOYHORFDWHGLQWKHFROGZDWHULQOHWOLQHFDQ
FDXVHZKDWLVUHIHUUHGWRDVD´FORVHGZDWHUV\VWHPµ
$FROGZDWHULQOHWOLQHZLWKQRFKHFNYDOYHRUEDFNIORZ
SUHYHQWLRQGHYLFHLVUHIHUUHGWRDVDQ´RSHQµZDWHU
V\VWHP
$VZDWHULVKHDWHGLWH[SDQGVLQYROXPHDQGFUHDWHV
DQLQFUHDVHLQWKHSUHVVXUHZLWKLQWKHZDWHUV\VWHP
7KLVDFWLRQLVUHIHUUHGWRDV´WKHUPDOH[SDQVLRQµ,QDQ
´RSHQµZDWHUV\VWHPH[SDQGLQJZDWHUZKLFKH[FHHGVWKH
FDSDFLW\RIWKHZDWHUKHDWHUIORZVEDFNLQWRWKHFLW\PDLQ
ZKHUHWKHSUHVVXUHLVHDVLO\GLVVLSDWHG
$´FORVHGZDWHUV\VWHPµKRZHYHUSUHYHQWVWKH
H[SDQGLQJZDWHUIURPIORZLQJEDFNLQWRWKHPDLQ
VXSSO\OLQHDQGWKHUHVXOWRI´WKHUPDOH[SDQVLRQµFDQ
FUHDWHDUDSLGDQGGDQJHURXVSUHVVXUHLQFUHDVHLQWKH
ZDWHUKHDWHUDQGV\VWHPSLSLQJ7KLVUDSLGSUHVVXUH
LQFUHDVHFDQTXLFNO\UHDFKWKHVDIHW\VHWWLQJRIWKHUHOLHI
YDOYHFDXVLQJLWWRRSHUDWHGXULQJHDFKKHDWLQJF\FOH
7KHUPDOH[SDQVLRQDQGWKHUHVXOWLQJUDSLGDQGUHSHDWHG
H[SDQVLRQDQGFRQWUDFWLRQRIFRPSRQHQWVLQWKHZDWHU
KHDWHUDQGSLSLQJV\VWHPFDQFDXVHSUHPDWXUHIDLOXUHRI
WKHUHOLHIYDOYHDQGSRVVLEO\WKHKHDWHULWVHOI5HSODFLQJ
WKHUHOLHIYDOYHZLOOQRWFRUUHFWWKHSUREOHP
7KHVXJJHVWHGPHWKRGRIFRQWUROOLQJWKHUPDOH[SDQVLRQ
LVWRLQVWDOODQH[SDQVLRQWDQNLQWKHFROGZDWHUOLQH
EHWZHHQWKHZDWHUKHDWHUDQGWKHFKHFNYDOYHUHIHU
WRWKHLOOXVWUDWLRQRQSDJH7KHH[SDQVLRQWDQNLV
GHVLJQHGZLWKDQDLUFXVKLRQEXLOWLQWKDWFRPSUHVVHV
DVWKHV\VWHPSUHVVXUHLQFUHDVHVWKHUHE\UHOLHYLQJWKH
RYHUSUHVVXUHFRQGLWLRQDQGHOLPLQDWLQJWKHUHSHDWHG
RSHUDWLRQRIWKHUHOLHIYDOYH2WKHUPHWKRGVRIFRQWUROOLQJ
WKHUPDOH[SDQVLRQDUHDOVRDYDLODEOH&RQWDFW\RXU
LQVWDOOLQJFRQWUDFWRUZDWHUVXSSOLHURUSOXPELQJLQVSHFWRU
IRUDGGLWLRQDOLQIRUPDWLRQUHJDUGLQJWKLVVXEMHFW



/2&$7,21&217

&DWFK3DQ,QVWDOODWLRQ

A— Diameter of water heater
plus 2” (5.1 cm) min.
B— Maximum 2” (5.1 cm)
127($X[LOLDU\FDWFKSDQ0867FRQIRUPWRORFDOFRGHV
&DWFK3DQ.LWVDUHDYDLODEOHIURPWKHVWRUHZKHUHWKHZDWHU
KHDWHUZDVSXUFKDVHGDEXLOGHUVWRUHRUDQ\ZDWHUKHDWHU
GLVWULEXWRU

5HTXLUHGFOHDUDQFHV

7KHUHPXVWEHDµFPFOHDUDQFHEHWZHHQDQ\REMHFW
DQGWKH)URQWDQG5HDUFRYHUVLQWKHHYHQWVHUYLFHLV QHHGHG
$PLQLPXPRIµFPFOHDUDQFHZLWKWKHVLGHVRIWKH
ZDWHUKHDWHULVDOVRUHFRPPHQGHGIRUVHUYLFHDFFHVV
$µFPPLQLPXPFOHDUDQFHLVUHTXLUHGWRUHPRYHWKH
ILOWHUIRUFOHDQLQJ7KHKRWDQGFROGZDWHUSOXPELQJDQG
HOHFWULFDOFRQQHFWLRQVPXVWQRWLQWHUIHUHZLWKWKHUHPRYDORI
WKHILOWHU

&RQGHQVDWLRQGUDLQ

7KHXQLWKDVDFRQGHQVDWHGUDLQWKHUHIRUHDGUDLQPXVWEH
DYDLODEOHLQFORVHSUR[LPLW\WRWKHXQLW7KHGUDLQPXVWEH QR
KLJKHUWKDQµFPDERYHWKHIORRUGUDLQPXVWPHHW
VWDWHDQGORFDOFRGHV
,IQRGUDLQLVDYDLODEOHWKHQDFRPPRQFRQGHQVDWHSXPSZLWK
DFDSDFLW\QROHVVWKDQJDOORQ/GD\PXVWEH SXUFKDVHG
IURPDORFDOEXLOGHUVXSSO\VWRUHDQGLQVWDOOHG
B
A
Route to open drain. Line
should be at least 3/4”
(1.9 cm) ID and pitched
for proper drainage.
6”(152.4cm)
7”
(17.5cm)
7”
(17.5 cm)
0$7(5,$/61(('(')25,167$//$7,21
:LUHQXWV
µ5LJLG39&
GUDLQSLSH
DVUHTXLUHG òµ013739&
&RQQHFWRU
òµ39&7HH
PVC CEMENT
39&*OXH