My mobile Home water pipes are full of lime scale, I installed a particle filter coming off the water tank, it is catching a lot of junk, but the pipes already have a lot of white flaky calcium in them . I clean out a faucet and a day later it clogs up again, I keep chasing it around from one toilet to a faucet back to two toilets. Is there something I can pour in the wellhead to flush the whole house at once??

I think you would need gallons of CLR. How hard to replace the piping?