luudee Posted August 26, 2017 Share Posted August 26, 2017 (edited) Hi Guys, I have two Astra 99 (750 mm) pool filters, and both of them are leaking around the seam on the top (picture attached). Is there an easy way to replace those top covers? Or re-seals them? Many Thanks, rudi Edited August 26, 2017 by luudee Link to comment Share on other sites More sharing options...
sappersrest Posted August 26, 2017 Share Posted August 26, 2017 http://spareparts.astralpool.com/en/exploded-view/00497 You probably just need a new lid gasket. another little trick is to remove the old gasket reverse it then apply silicon grease. What reading does the pressure gauge read when it is running? Link to comment Share on other sites More sharing options...
luudee Posted August 27, 2017 Author Share Posted August 27, 2017 It's not the actual lid, it's underneath, between the plastic part where the lid screws in and the metal part of the filter body. I did open the lib and made sure the gasket was good and applied some grease on it. rudi Link to comment Share on other sites More sharing options...
sappersrest Posted August 27, 2017 Share Posted August 27, 2017 OK if you look at the exploded drawing you will note items 5 and 6. 6 is the o ring that is probably causing the problem this can be caused at manufacture due to in correct tightening sequence. You will have to remove the lid and drain some water out, and remove the diffuser cone these are pushed over the pipe and usually held in place with a self tapping screw. Next slightly loosen the union and turn the vertical pipe through 90 deg to allow access to the retains nuts under the rim gently tighten these one at a time opposite each other until all have been tightened. Re assemble and test. If this fails you may have to replace o ring 6. The lid seals on these filters do not usually give much problems. good luck. Link to comment Share on other sites More sharing options...
luudee Posted September 1, 2017 Author Share Posted September 1, 2017 On 8/27/2017 at 5:42 PM, sappersrest said: OK if you look at the exploded drawing you will note items 5 and 6. 6 is the o ring that is probably causing the problem this can be caused at manufacture due to in correct tightening sequence. You will have to remove the lid and drain some water out, and remove the diffuser cone these are pushed over the pipe and usually held in place with a self tapping screw. Next slightly loosen the union and turn the vertical pipe through 90 deg to allow access to the retains nuts under the rim gently tighten these one at a time opposite each other until all have been tightened. Re assemble and test. If this fails you may have to replace o ring 6. The lid seals on these filters do not usually give much problems. good luck. Thanks for pointing that out. I need to take a closer look and take it all apart ! rudi Link to comment Share on other sites More sharing options...
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