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	Broken impeller
puffer_archer Enthusiast Posts: 288 Kudos: 250 Votes: 4 Registered: 20-Jul-2004	So, I noticed recently that one of my HOB filters was making more noise than usual. When it didn't quiet down after a day or so, I tore the filter apart and what did I find? One of the rubber rings that suspend on the impeller on the metal shaft was completely gone! So, one week later I have a new impeller in place and it's working beautifully...and silently. Has anyone else had this happen? Oh, I should probably mention that I have a sand substrate in that tank.
Posted 26-Jan-2006 11:39
keithgh Ultimate Fish Guru Posts: 6371 Kudos: 6918 Votes: 1542 Registered: 26-Apr-2003	puffer_archer At a good guess I would say the fine particals of the sand acted as an abrasive hence no rubber. Keith Near enough is not good enough, therefore good enough is not near enough, and only your best will do. I VOTE DO YOU if not WHY NOT? VOTE NOW VOTE NOW
Posted 26-Jan-2006 11:39
puffer_archer Enthusiast Posts: 288 Kudos: 250 Votes: 4 Registered: 20-Jul-2004	That was my thought too, so I shortened the intake tube to get the intake further away from the sand.
Posted 26-Jan-2006 11:39
Fallout Moderator Communications Specialist Posts: 6416 Kudos: 4053 Votes: 742 Registered: 29-Jul-2000	hob + sand = shred-o-matic
Posted 26-Jan-2006 11:39
heaven2 Mega Fish Posts: 1065 Votes: 0 Registered: 10-Jun-2002	Another thing you might consider doing is placing a sponge prefilter over the intake strainer. Helps keep sand out of the impeller.
Posted 26-Jan-2006 11:39
Babelfish Administrator Small Fry with Ketchup Posts: 6833 Kudos: 8324 Votes: 1570 Registered: 17-Apr-2003	agrees After killing a few impellers I finally got the powerhead placed right and the intake covered....not very well of course because it's just a trickle flowing out but it's covered all the same {note to self, change intake cover}.....in any case cover your intake....You might want something a bit finer than a sponge though . ^_^ [link=H2g2]http://hitchhikers.movies.go.com/upgrade.html" style="COLOR: #EB4288[/link] 2005 Don't Leave Home Without it[/font]
Posted 26-Jan-2006 11:39


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