Debris in hot tub

[Deedee2604]

Hello.  I suddenly got this yellow debris in my hot tub.  In the fall before winter, I drained the tub and flushed out the pipes with Ahh-Some.  I have not used the tub all winter.  I use the dichlor then bleach method and have been putting in bleach all winter.  When I first discovered this debris I super chlorinated it and ran the clean cycle.  It cleared up then it just came right back.  I included some pictures below.  Anyone know what this could be or how I should get rid of it?  I have never had this happen before.

[Ahhsomeguy]

So, you used the Ahhsome before Winter and the tub sat empty for 5 months or so.mmif this is correct you need to flush the plumbing again before you refill and use going forward.

 

[Deedee2604]

Hi.  It was not empty all winter.  I refilled it before winter and balanced the water.  I kept it going all winter, just never went in it.