I just checked also and yep. You are correct about filter. Sorry. However it does state that it has to be flushed properly and I doubt your system would have been clean in 2 hours.
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No filter mean no warranty. They need to fit a filter.
I have seen companies honour warranties with dirty water because a magnetic filter has been fitted.You mean inline scale filter or magnetic filter? Having no magnetic filter doesn't void warranty even tho its good practice to fit one...system needs to be crystal clean mind. Don't have to fit scale filters down this way so not sure.
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