auto-fill devices
This is the third and final article in a series on auto-fill systems for ponds and watergardens. Although relative cost is certainly a key factor in the selection and installation of an auto-fill system for a pond or watergarden, there are practicalities that come into play in the decision – not the least of which will have to do with how the device is to be mounted. Float valves, for example, come in a variety of forms – some with large float bulbs attached to pivoting arms (as with common toilet valves). Not only are these devices fairly unsightly, but they also operate in a horizontal plane and need