I use a scrub brush on a pole and a  bathroom tile cleaning product then rinse well and wash again with a mild soap.

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> On Aug 12, 2017, at 11:29 AM, Edward Maglott <emaglott3@GMAIL.COM> wrote:
> 
> this is a consumer level electric karcher brand.  says max 1650 psi.  I
> like the nozzle that "swirls".  Like it is a powerful stream but it spins
> around in a circle pretty fast.  I did a little testing and it seemed to
> leave the fiberglass smooth.  I just don't want to damage it obviously.  if
> not pressure washing, what have folks had success with cleaning it?
> Thanks,
> Edward
> 
>> On Sat, Aug 12, 2017 at 1:41 PM, <JordanVw@aol.com> wrote:
>> 
>> depends on pressure setting and nozzle.  ive seen pressurewashers that
>> have lifted fiberglass strands right out of thin gelcoat
>> 
>> 
>> 
>> 
>> In a message dated 8/12/2017 1:39:47 P.M. Eastern Daylight Time,
>> emaglott3@GMAIL.COM writes:
>> 
>> or will that damage it?
>> Thanks,
>> Edward
>> 
>>