enomol Aquarium Water Changer, 30ft

The enomol Gravel Vacuum (model ENOMOL023) is a semi-automatic water changer that connects to a sink faucet. It has two valves and a 30ft hose, and it uses the pressure of tap water to pull dirty water out of the tank. When draining is done, you switch a valve and refill through the same hose. No bucket is needed.

How the faucet drive works

Running tap water through the faucet fitting creates suction in the hose, so the siphon starts and keeps going without priming by hand. Dirty water goes straight down the sink drain. enomol aims it at medium and large fish tanks, where hauling buckets is the hardest part of a water change.

Gravel cleaning

The 16.5inch cleaning tube has a built-in filter. While draining, stir it gently through the gravel to lift debris. enomol says it runs quietly and does not disturb the fish.

Faucet fit

The package includes several adapters so it fits most sinks:

• 3/43 GHT garden hose adapter
• 15/163 threaded faucet adapter
• 55/643 threaded faucet adapter
• 13/163 threaded faucet adapter

Refilling safely

Refilling from the tap is convenient, but tap water must be treated. Dose a dechlorinator for the full tank volume before or as you refill, and adjust the mixer so the new water matches the tank temperature. Check temperature at the hose end with your hand or a thermometer before it goes in.

Who it suits

This is a strong choice for keepers with a medium or large tank within 30ft of a sink, and for anyone who finds buckets the reason water changes slip. Owners of small tanks will do fine with a hand siphon like the Tetra Water Cleaner. enomol lists a 2 YEAR warranty.

Before the first use, run the hose out fully and check every joint for drips at the faucet end. Lay the hose so it cannot kink across a doorway or get pulled by a pet. Turning the tap off before you switch valves keeps the hose from jumping.