[DeLuce]

Had finished my week, so thought I'd do a dirty conserve job coz knew I could take my time and do a good job. Blimey, found it hard  going and it didn't end up gleaming white after 3hrs of Tfr and scrub and rinsing as I thought    I only charged £25 as well  : , but she's an old customer and I used it to experiment, see how long it takes and idea of how much to charge for similar jobs.
 Anybody had a similar problem with removing coal fire residue and detergents that work well on it?    Ta for any help, always appreciate it