the $1800 DuraMac 1.5 unit has some cheap componen...

the $1800 DuraMac 1.5 unit has some cheap components, the bushing for the transducer is cheap plastic and was broken on arrival. see other reviews with the same problem. flow switch came apart after 1 day and when i contacted the manufacturer they got very defensive and started accusing me of improper use but refused to comment on how that could cause the switch to come apart. just kept tellkingto contact the seller while insisting the unit was not defective. for what reason do i need to contact the seller for if its an application issue? something shady is going on here they are clearly hiding something