1. the seal is gone, 6 R+ X' M2 s T2. the connector of pipes is loose or fell apart.- j" b6 d: j& A
3. some where is blocked or clogged, the water sucked back.# n" }% h" G- g- @4 x |
. ]2 B& }. X9 ~& {
Post by microsoft666;2369259 - x* P: Z4 S9 t. q. C( Y, a$ i1 x 没有朋友懂吗?
1. the seal is gone,: Y: T4 J7 \2 C5 N# V/ p3 B4 a
2. the connector of pipes is loose or fell apart.* x" C& l1 M( T( s. _8 V
3. some where is blocked or clogged, the water sucked back.7 \$ S& n; l0 X2 Q/ H) T- F0 \1 ~2 v4 o. M