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: 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: WATERCO T600
why do you want to do this i ask as its totally not necessary ,just back wash the pool and this will clean the sand regardless how dirty you may think it is ,i have had the same sand in my pool for the last 25 yrs and never even thought about it ,i have cleaned out pools for friends that were quoted silly money for new filter sand and a few tiles to be replaced where left for years and all i ever done was to pump out the pool with a sumersable pump the disconnect the pool pump that was siezed ,drop of oil on the valve taps tops and replaced the pool pump if i couldnt free it off or take it apart and fit new bearings then mop out pool and put some water in and put pump on backwash and open the bottom drain tap and let the water go through the backwash cycle and thats was it .You have been listerning to the bar room experts again who know more the greater the beer intake from the sound of it .
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