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  1. C

    optimax water pressure update

    Hi, I posted a few weeks ago about my 150 optimax that had low block pressure at idle. <br />I think/hope I have found the problem. With the lower unit removed I fitted a hose to the main water tube that runs to the powerhead. When I turned the tap on I looked up the mid section to see if the...
  2. C

    150 optimax water pressure low

    Hi all this is my first post so bear with me.<br />I own a 150 optimax 2000 model that all the time iv owned it it has had low block pressure at idle approx .5 psi. It has had water pump and housing replaced poppit valves and screens checked and still the same. This problem is particularily bad...
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