Our washing machine cold water inlet filter often clogs up from fine residue from our water tank.
It's a cow pulling out the WM to clean it.
Are there any in line filters that anyone knows about for the 25mm pvc inlet pipe to the pump?
Filter for water tank.
(9 posts) (6 voices)-
You need to look at the tank installation first.
Over 90% of the tank installations I see are sub standard. The first thing you need to check is the height of the pump's tank draw outlet at its lowest point from the bottom of the tank.
If the tank has a sediment build up and the pump is drawing water from the bottom of the tank, then the pump will ingest sediment. This is what would be happening with your system. If you fit a filter, the filter will have a hard time and require maintenance. It is better to tackle the cause of the problem first.
I always recommend that the outlet feeding the pump is a minimum 100 mm above the bottom of the tank at its lowest point. Some are fitted as low as 50 mm!
When was the tank last cleaned?
EDIT:
You mention a PVC pipe to the pump. Does this connect directly to the pump? If it was installed by a plumber, he should have known that a flexible coupling is required for compliance.Posted Wednesday 6 Feb 2013 @ 2:03:01 am from IP # -
johnmath
MemberI don't have a filter on our whole house pumped rainwater system and we haven't had any problems in four years. All our gutters have 5mm mesh, the rainheads have 1.0mm mesh, then I have a first flush diverter, followed by a 0.5mm mesh filter at each tank inlet. The filters need cleaning after every couple of rains, which is a real pain.
To remove any VISIBLE material from the drinking water I bought a standard under bench cartridge with 1” connections, and bought a 1 micron filter insert to fit. The filter does not appear to impede flow at all (it is in a gravity feed to a single tap in the kitchen). It cost about $70 for the two parts. I cleaned this once after four years and it had only accumulated a very small amount of silt. If all of the water for the house passed through it, it would obviously need cleaning more frequently.
For your application a 5 micron filter would be suitable and would need cleaning a lot less often than a 1 micron one.
My filter is similar to what is shown here: http://www.waterworld.com.au/listings/filt_rw_us_sediment.htmlPosted Wednesday 6 Feb 2013 @ 2:36:15 am from IP # -
TonyT
MemberOriginally made by Wingfield Plastics for drip and microspray garden watering, Philmac sell a black "strainer cylinder" that is 150mm long with a one inch BSP Male thread on each end.
The finest white mesh-insert has holes with dia about 0.5mm.
This mesh is fine enough that we never need to clean the strainer washers on the washing machine.
Our tank outlets are 100mm above the bottom and each outlet has its own strainer.
The coarse mesh allows more than 12 months between cleaning and it is still working after 30 yrs.Posted Wednesday 6 Feb 2013 @ 3:02:31 am from IP # -
Lance
Key MasterI just bought one of these for the tank to pump line: http://www.ebay.com.au/itm/140558811177 and one of these for the pump outlet (finer mesh): http://www.ebay.com.au/itm/140872896412
They both, but particularly the second one, look excellent quality, and the second one comes in a 10" version with larger (3/4") connections, so you only need to reduce down to 3/4", not half inch: http://www.ebay.com.au/itm/140646998000
Posted Wednesday 6 Feb 2013 @ 5:14:51 am from IP # -
Thanks Lance
Might get a under the laundry sink visible filter for the washing machine only.
Wont need to go cutting the pvc 25mm pipe and buying adaptors.
Could thread the 1/2inch filter to the stop cock and I have a 1/2 inch male to tap thread copper union. Thanks again.Posted Wednesday 6 Feb 2013 @ 5:52:29 am from IP # -
Lance
Key MasterNo probs, have been using http://www.irrigationwarehouse.com.au as a source of fittings as can be hard to find the right ones, if you can't find them locally...
Posted Wednesday 6 Feb 2013 @ 6:10:08 am from IP # -
Greg C
MemberOur tank has two filters, one 50 micron and one 10 micron. As it is a Rainbank system it filters mains water as well when the tank is dry. The 50 micron is washable, but the 10 micron is a replaceable cartridge. We have had no problem with any thing in the house and the tank water looks indistinguishable from tap water.
One issue after I bought all the bits, was reading the installation instructions and Davey recommended an inline filter before the Rainbank controller and to fit an inlet foot so the in tank pump would suck water from a few metres above the floor. No mention of these essential items in the sales brochures or just add them to the kit. The inline filter is installed but the foot is yet to be fitted but it will be soon as I have to replace the 10 micron cartridge every 3 months if is rainy like it has been the last few years. After the foot is installed it should last a bit longer.
Posted Wednesday 6 Feb 2013 @ 10:32:25 am from IP # -
TonyT
Membermesh size conversion chart
http://www.vanislewater.com/screens-mesh-micron-conversion-chartThe finer the mesh, the more often it needs cleaning.
Only drinking water needs fine filtration.
Disc filters are much easier to clean than are mesh filters
http://www.youtube.com/watch?v=X66chc6oGA4Posted Wednesday 6 Feb 2013 @ 9:37:45 pm from IP #
