Going the distance!!!
- Thread starter atticus
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alanbetiger
Active Member
Oh yeah about the expanding hose! I did that once....
I would use an AC pump not a DC one. They just do not push water at a distance well. I push water from a holding tank to a mixer that is 200 feet away. Would not attempt that with a DC pump. The actual head pressure on DC pumps is pretty low. You will see all kinds of rates on them but they are not real world stuff.
Go with an Iwaki WMD40RLXT Water Pump has a head pressure of 15 feet and will stand up to the pressure.
Go with an Iwaki WMD40RLXT Water Pump has a head pressure of 15 feet and will stand up to the pressure.
For a water change system like this, I prefer a Stenner double head peristaltic pump. The 100psi version can handle this run with ease. And for around $400, I don't think you can go wrong. I have two on a 400g with a 10ft vertical/30ft horizontal run. It runs 5 minutes every hour.
http://www.lockewell.com/index.php?main_page=product_info&cPath=1_6_31_37&products_id=177
http://www.lockewell.com/index.php?main_page=product_info&cPath=1_6_31_37&products_id=177
But some people want to do it the hard way.
Breadman03
Valuable Member
+1
Sure, smaller diameter pipe will flow less than larger diameter pipe, but there is no practical reason that either of those pumps won't pump enough water to the tank for water changes. Even one gallon/minute would be doable.
I'd suggest looking to plumbing for your solution. I suspect that either your hose is plugged up somehow(BTW-beware of copper or brass fittings), or maybe you have your manifold valved in a manner that allows the water to simply recirculate in one of your containers instead of being forced down the hose.
redfishbluefish
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@Brew12 , I'm scratching my head on this one.....you state horizontal run is not important and then state with 200 foot run it (flow) would not be as fast. I'm thinking we're agreeing, just seeing it differently.
I'll give real time numbers....again, using a MAG24, because I used it earlier where a 5 foot rise and 25 foot run produces about 700 gph. If I now only use the numbers you supplied....zero rise and 10 foot and 200 foot horizontal run (using 3/4 inch pipe) I get a flow rate of 1223 and 384 gph, respectively. So horizontal run is important to flow rate.
My second real time example is that I collect my RO waste water and wanted to use it for the washing machine and watering plants outside during the warmer months. I have a 55 gallon drum with a MAG18 in it. I installed a separate sillcock for this operation. When I tried using this setup with a 100 foot hose, I got a dribble of water coming out the hose....all horizontal run. It wasn't worth the effort. Again, horizontal run matters!
ithk21620
Active Member
It would probably move water but it may be very slow. The pumps you listed are rated for about 12 feet of head and with your rise in the pipe and the horizontal run you are about 12 feet of head give or take. That was from a calculation I did this morning but I added I think six 90's and a few other fittings because I didn't know exactly how you had it ran. If you have a regular hose just hook it up and run some fresh water through it to try.
Brew12
Electrical Gru
Horizontal runs do matter when it comes to the amount of flow. A horizontal run will not prevent flow. Flow calculators tend to over simplify the impacts of a length of pipe. It isn't uncommon to see them state an equivalent head loss value for a length of pipe. Those are useful but they aren't accurate. Flow friction is dynamic. A system with no flow, such as this one seems to be, has no frictional losses. The same 25 foot stretch of pipe could have more losses than the 4.5' elevation change under extremely high flow conditions. I wasn't trying to imply that a 25ft stretch of pipe would never impact flow rates. Only that it wasn't having an impact in this situation because there is no flow at all.@Brew12 , I'm scratching my head on this one.....you state horizontal run is not important and then state with 200 foot run it (flow) would not be as fast. I'm thinking we're agreeing, just seeing it differently.
I'll give real time numbers....again, using a MAG24, because I used it earlier where a 5 foot rise and 25 foot run produces about 700 gph. If I now only use the numbers you supplied....zero rise and 10 foot and 200 foot horizontal run (using 3/4 inch pipe) I get a flow rate of 1223 and 384 gph, respectively. So horizontal run is important to flow rate.
My second real time example is that I collect my RO waste water and wanted to use it for the washing machine and watering plants outside during the warmer months. I have a 55 gallon drum with a MAG18 in it. I installed a separate sillcock for this operation. When I tried using this setup with a 100 foot hose, I got a dribble of water coming out the hose....all horizontal run. It wasn't worth the effort. Again, horizontal run matters!
I hope I did a better job explaining that this time.
Iwaki is a work horse pump"s I have never used Pan World pumps.
ithk21620
Active Member
The Pan World Blueline pumps are designed and built by a former chief engineer from Iwaki-Japan so they are very similar. I have had both Iwaki and Pan World and like them both. I find the Pan World pumps to be a little quieter than the Iwaki.
