REMOVING 40 MM (1.5 IN) SCREW-IN TOP MULTIPORT VALVE.
1. Check filter base is bolted or 'pinned' to slab/paver. Mine was not.
2.Undo piping connections unions and pull back piping as much as possible to get access to Pump Inlet and Waste connectors.
3. Use two lengths of 25 mm (1 in) HARDWOOD dowel about 600 mm (24 in) long or hammer handles, on each side pushed inside PE body of MPV as far as will go inside each connector.
4. Curse and swear and lever hard anti-clockwise until friction grip of thread releases but valve body not damaged (you hope) and can use hand grip onto valve body to unscrew..
This was the hard part no-one spoke about on the web sites.
5. Follow suggestions for unit opening as described everywhere.
6. Use a wet suction vacuum to remove the sand fill. So much easier. I bought a 15 Litre (1.5 gallon) Homelite budget unit. Best investment ever and can use for other dirty cleaning jobs.
7. If you need a new sand filter, buy a model with clamp-on Victaulic type mounting for a stress free life, not a screw-in MPV..
SOURCE: How do I replace the
Replacement of the sand is easy but there are a couple of things you want to do first.
Make sure you have a good shop-vac, get gloves, and purchase the proper sand.
This sand filter calls for #20 silica filter sand. (this will be available online, at your pool store, or at any water treatment facility).
Here is the link for this filters manual, and for the brochure (which has good pictures)
http://www.waterco.com.au/CMS/uploads/brochures/ZZB0512_Thermoplastic.pdf
http://www.waterco.com.au/CMS/uploads/Manuals/Sand_manual_829006.pdf
The manual has step by step instructions on filling and starting the filter.
The only part it doesnt tell you about is how to empty the old filter media.
To start this:
1. turn off circulation pump
2. Bleed any pressure or vacuum from the system using the bleeder valve, or just rotate the multi-port valve.
3. Open the drain valve at the bottom of the filter if there is one (some dont have one)
4. remove the collar between the multiport valve, and the tank. (this should be 2 phillips head screws)
5.Remove the multi-port valve.
you now have access to the sand.
6. Remove sand by whatever means (either a scoop or a good shop-vac with a thick hose)
be sure to be carefull once you get 2/3 of the way down the inside of the tank. There are LATERALS down there that are most likely brittle from chlorine.
Once sand is removed check and clean the laterals at the bottom of the tank.
Clean and flush the filter body and follow the directions in the manual to fill and start-up the filter.
If this helped, please vote positively for me.
SOURCE: hayward sand filter not filtering small particles
You probably have too big of pump. It is pushing the finer stuff right back into pool. Try adding a clarifier. Don't backwash either until the pressure goes up.
SOURCE: How to change sand in a Poolrite S600 filter
Here is a link to very thorough instructions.
http://www.ehow.com/how_4999132_change-sand-pool-filter.html
Here is a link that will take you to a page with the specifications for your filter. This will tell you how much sand and aggregate to use.
http://www.poolrite.com.au/system/specs/7/original/Microsoft_Word_-_POOLRITE_MEDIA_FILTER_AND_SPEC.pdf
Hope this helps.
If it does, please rate me positively
SOURCE: when waterco sand filter is
Thank you for posting your question here on Fixya.com. Since you already replaced the gasket you will need to check two others things: First, inspect the groove the new gasket is sitting in as well as the mating surface of the diffuser. Be sure none of the old gasket is still there. Thoroughly clean all surfaces as well to ensure the new gasket is fully seating in the valve. If that does not cure the leak you will need a closer inspection of the mating surfaces to find a crack. Without any pump pressure on the valve it will be tough to find. It will appear as a hair like line but once the pump is on it will open up enough to let water pass. If you find a crack you can try to use a two-part plastic approved epoxy to seal it or else you will need to replace that part. If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!
John
SOURCE: davey tagelus 230 high rate sandfilter how do i change the sand
Once you have removed the plumbing connections and the top selector plate you can then unscrew the top from the main filter body, This is not easy and you will have to use a 5 lb hammer (lumpy) and a block of wood as the top has been siliconed to the body and made a tight fit. Be very careful with the hammering and make sure you only put the wood against a solid part of the top near a plumbing joint before applying the hammer to the end of the wood. There are about 6 complete turns before the top part is unscrewed. The threads will need to be cleaned and the old silicone removed and clean the sealing gasket "o" ring before putting back. My model did not have an "fingers" at the bottom of the central stalk. I believe the filter should be filled 2/3 with the proper filter sand grade 16/30
Hope this helps
Robin Moseby
[email protected]
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