It is normal to add a valve before the water meter
Normal water meters will not be installed before the valve, that is tantamount to help others steal water in disguise
Water meter after the valve is easy to maintain. Easy to change tables and no water. In front of the valve with little significance. And waste. But when it comes to formal, plus a check valve in front of the table, that is the normal installation. Can prevent water meter reverse!
In principle, the water meter is not added before the water meter, because it is afraid of stealing water, the water meter is added to the water meter after the meter is added, and the water meter is provided with a main valve, and the water meter has a low failure rate
