RO pump running time.

[steveb87]

Been looking at the RO pressure pumps but a lot say they are not for continuous use so how do you get a 50gal from a pump that can't run for a day?

 

[Colin_T]

We used a reverse osmosis unit to fill a 50 gallon barrel in the shop. Then we turned the tap off and waited till the barrel needed filling again. We didn't part fill it then wait, we just let it run till it was full.

 

[steveb87]

We used a reverse osmosis unit to fill a 50 gallon barrel in the shop. Then we turned the tap off and waited till the barrel needed filling again. We didn't part fill it then wait, we just let it run till it was full.

Thanks but how long did it take to fill 50gal? they say that the pump would burn out if used for longer than 2 hours. Must be some pumps you can use continuously but I bet they are more £££ not found one yet.

 

[TwoTankAmin]

we use RO/Di water here for a few things. I use 11-12 gallons a week for an Altum angel tank. My brother uses the smaller room humidifiers and wants to use pure water to prevent the calcium and othe crud that can build up in them. Wh have two poretavle RO/DI units which have a max output of 75 gpd.

We run water have few weeks using the house water pressure and no pump. We batch into a 20 gal. Rubbermaid and from there we pump it into storage containers. A number of 5 gal buckets and 1 gal. repurposed cider or store bought water bottles. The unit comes with color coded lines and the input cant be wither via a garden hose connector or an inline system. I use the former as my utility sink has a garden house male outlet and I can connect hoses to it easily.

I would think you can get a storage containers in the UK like the ones here https://jehmco.com/html/water_storage_tanks.html

 

[steveb87]

we use RO/Di water here for a few things. I use 11-12 gallons a week for an Altum angel tank. My brother uses the smaller room humidifiers and wants to use pure water to prevent the calcium and othe crud that can build up in them. Wh have two poretavle RO/DI units which have a max output of 75 gpd.

We run water have few weeks using the house water pressure and no pump. We batch into a 20 gal. Rubbermaid and from there we pump it into storage containers. A number of 5 gal buckets and 1 gal. repurposed cider or store bought water bottles. The unit comes with color coded lines and the input cant be wither via a garden hose connector or an inline system. I use the former as my utility sink has a garden house male outlet and I can connect hoses to it easily.

I would think you can get a storage containers in the UK like the ones here https://jehmco.com/html/water_storage_tanks.html

Thanks, I used one a while ago to improve pressure and it worked well cutting down on waste but still lose a lot when using cold water and not wanting to heat the water prior to the RO £££ I would love to run a test on a 50gpd and a 200gpd with same temp and pressure and run them to produce say 25gals and see what the waste water ratio is.

 

[StevenF]

Do you have low home water pressure? if not you don't need a pump. Most home RO systems simply use the pressure in tap water to push water through the RO filter. The RO water can then be stored in a large bucket and pumped out when needed with a conventional pump. If you have low home water pressure I would recommend you contact a plumber to determine what exactly your problem is. Some most have a pressure regulator between the mome and the utility system. These sometimes go bad or need adjustment. Other times you have a corroded pipe that is plugged.

As to the life time reading of a pump, most most pond pumps or water pumps are cooled by the water flowing though them any will last many years before they fail.. However if you run a pump without water it can over heat and fail.

 

[steveb87]

Do you have low home water pressure? if not you don't need a pump. Most home RO systems simply use the pressure in tap water to push water through the RO filter. The RO water can then be stored in a large bucket and pumped out when needed with a conventional pump. If you have low home water pressure I would recommend you contact a plumber to determine what exactly your problem is. Some most have a pressure regulator between the mome and the utility system. These sometimes go bad or need adjustment. Other times you have a corroded pipe that is plugged.

As to the life time reading of a pump, most most pond pumps or water pumps are cooled by the water flowing though them any will last many years before they fail.. However if you run a pump without water it can over heat and fail.

It's not too low can't remember what it was when I was doing it a few years ago. Always been aware that if you can increase the pressure up to the limit of the RO and produce better volume of product water. See attached for warning on the pump. Not seen this on my pump I had and not all suppliers say that you can or can't run it continuously.

 

[TwoTankAmin]

I have an unusual situation. I have a private well with excellent water/ It is basically on the soft side and neutral pH. But I keep some fish at 6.0 and softer, so I use the RO/DI unit for them. I batch water from my tap that is on the warm side. When I am running overnight I turn off the hot to slow things down. I have overfilled my can a few times over the years.

I am never under a time gun for running water and when we do it is to fill and store about 75 gals. When we don't make it for the humidifier I only store about 45 gal.

But it seems to me that a pump cannot make the water go any faster than the maximum intake. So you would need to connect to a wider diameter pipe than a faucet.

 

[StevenF]

It's not too low can't remember what it was when I was doing it a few years ago. Always been aware that if you can increase the pressure up to the limit of the RO and produce better volume of product water.

So your problem is not low pressure. You just want higher flow.

RO Buddie makesRO filters that produce 50 or 100 gallons per day. The 3 way filter doesn't have a DI filter cartridge which you don't need. High flow systems don't use a pump. Instead they just use a larger filter to filter more water faster. Most RO filter systems you see on the market produce 25 gallons per day. and are designed to fit under the sink 25 gallon pie hour system can be connected up to a larger storage tank to store enough RO water for a tank water change. But for large tanks you need a high flow system.

 

[StevenF]

have an unusual situation. I have a private well with excellent water/ It is basically on the soft side and neutral pH. But I keep some fish at 6.0 and softer, so I use the RO/DI unit for them. I batch water from my tap that is on the warm side. When I am running overnight I turn off the hot to slow things down. I have overfilled my can a few times over the years

It is probably better that you post this question in another tread. But you need to clarify what you looking for. Soft water has a low GH (Genernal hardness) the can have low or high PH. Or are you trying to correct KH (carbonate / alkalinity ). GH KH and PH are all different things. Low PH doesn't mean soft water. Only GH tells you what the hardness of the water is And many people believe KH and GH are the same thing, They are not.

For very soft water or RO water a GH booster is often used to increase GH.