I've got a 50' hose with a large gravel vac but it doesn't seem to generate enough pressure to suck stuff into the hose and out. Was thinking of replacing with a thinner vac tube but can't seem to find one online. Advice please. Thx.
Dan
Equipment & Supplies • my siphon won't pick up junk- need advice
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Re: my siphon won't pick up junk- need advice
I use a Python with a 50' hose + 10' extension, connected to my utility room's sink where the water pressure coming out of that spigot is pretty good. And I have no issue with gravel vac in my tanks. Is the water pressure really low maybe at the spigot your hose is connected to?
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180gal Trewavasae Chilumba & Kenyi
- ken31cay
- Joined: Tue Oct 09, 2018 12:19 pm
- Location: Cayman Islands
Re: my siphon won't pick up junk- need advice
ken31cay wrote:I use a Python with a 50' hose + 10' extension, connected to my utility room's sink where the water pressure coming out of that spigot is pretty good. And I have no issue with gravel vac in my tanks. Is the water pressure really low maybe at the spigot your hose is connected to?
I'm just using straight siphon power. No sink connection. Don't really have that option with this set up.
- jed clampett
- Joined: Wed Sep 12, 2012 11:42 am
- Location: VA
Re: my siphon won't pick up junk- need advice
Jed, where are you siphoning to with the existing hose, to a level above the tank rim or below the tank rim? I find that when just using gravity, the lower the drain end the faster it drains.
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- Deeda
- Joined: Wed Jan 04, 2017 6:56 pm
- Location: Medina, OH
Re: my siphon won't pick up junk- need advice
JC;
Simple siphon is an effective (and free) energy source, but 50ft of hose with just a simple siphon (where I estimate only a few feet max of height diff between intake and outflow, if tank and sink are on the same floor), the hose length will present significant resistance to flow and slow it (so it doesn't surprise me that it is unable to pick up much)...opposed to the 5ft of hose I use to drain into a 5gal bucket (which works like gangbusters to suck up debris!)...is there any way you can shorten path, OR increase height diff (by for instance draining to a cellar drain)?
Cheers
Simple siphon is an effective (and free) energy source, but 50ft of hose with just a simple siphon (where I estimate only a few feet max of height diff between intake and outflow, if tank and sink are on the same floor), the hose length will present significant resistance to flow and slow it (so it doesn't surprise me that it is unable to pick up much)...opposed to the 5ft of hose I use to drain into a 5gal bucket (which works like gangbusters to suck up debris!)...is there any way you can shorten path, OR increase height diff (by for instance draining to a cellar drain)?
Cheers
- Ronzo
- Joined: Sun Sep 08, 2013 9:15 am
- Location: Connecticut
Re: my siphon won't pick up junk- need advice
Deeda wrote:Jed, where are you siphoning to with the existing hose, to a level above the tank rim or below the tank rim? I find that when just using gravity, the lower the drain end the faster it drains.
siphoning out the door (outside) to a spot about 4 feet below substrate level
- jed clampett
- Joined: Wed Sep 12, 2012 11:42 am
- Location: VA
Re: my siphon won't pick up junk- need advice
Ronzo wrote:JC;
Simple siphon is an effective (and free) energy source, but 50ft of hose with just a simple siphon (where I estimate only a few feet max of height diff between intake and outflow, if tank and sink are on the same floor), the hose length will present significant resistance to flow and slow it (so it doesn't surprise me that it is unable to pick up much)...opposed to the 5ft of hose I use to drain into a 5gal bucket (which works like gangbusters to suck up debris!)...is there any way you can shorten path, OR increase height diff (by for instance draining to a cellar drain)?
I did not consider this. Thanks for the info. I will think about modifying my system.
- jed clampett
- Joined: Wed Sep 12, 2012 11:42 am
- Location: VA
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