If the drainhose does not have this rating, open the cold water inlet valve and open a nearby hot water faucet until water is no longer hot.
如果排水软管的额定温度没有达到上述要求,请打开冷水进水阀,打开附近的热水水龙头,直到水不热为止。
3
The first step was to line the drain area with small stones. This enables the keeper to hose the small stones covering the concrete without the stones washing into the drain.