Knock-out Biological Drain Treatment 1L

By Barrettine Product code: 74134 Pack size: Each

Product Details

Environmentally friendly solution for drain maintenance.

Contains natural bacteria (1.6 billion per ml), yielding speedy breakdown of fats, proteins and carbohydrates.

Technical Specification
Brand Barrettine
Manufacturer ID KOBD001
Safety Data Sheet click here
Type Preparation & Treatment
Volume (L) 1
Pack Size 1
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 7pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday

Pre-12pm Delivery – £10.00 or £5.00 for orders over £25, to arrive before 12pm on the scheduled days above

Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)

Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)

Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.

Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday. Please check your local branch is open on the branch locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the branch you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in branch, the order must be placed by 7pm Monday to Thursday for collection the next day. Orders placed after 7pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Reviews
Knock-out Biological Drain Treatment 1L is rated 4.0 out of 5 by 61.
Rated 5 out of 5 by from Blocked sink Cleared my blocked bathroom sink.
Date published: 2022-04-09
Rated 1 out of 5 by from Not very good, dishwasher tablet better Did nothing, use a couple of dishwasher tablets and a bit of boiling water instead !
Date published: 2022-03-18
Rated 1 out of 5 by from No good I have a slow draining shower waste, after using I still have a slow draining waste, no better at all.
Date published: 2022-03-04
Rated 4 out of 5 by from Drain treatment Did the job and cleared my blocked shower pipe
Date published: 2022-03-02
Rated 4 out of 5 by from Shower unblocker. Shower at my daughters house was fully blocked. Probably from hair. This worked well. Now the water flows as normall
Date published: 2021-09-10
Rated 5 out of 5 by from Excellent gunge Having an annoying blocked waste pipe with access difficult as it runs behind a bath, and my rodding device wouldn’t clear it I looked for a chemical solution. Since this was in stock at Toolstation at a reasonable price and as I recall had some very positive reviews I decided to try it. It was pleasant to use didn’t work as fast as a more aggressive chemical one would but it cleared the blockage. So I bought some more and splashed some down all my sinks.
Date published: 2021-08-17
Rated 5 out of 5 by from drain cleaner great product and price dose what it says
Date published: 2021-08-10
Rated 5 out of 5 by from It Works! An effective treatment for grease; oils; fats; and sundry blockages in the kitchen drai.
Date published: 2021-08-10
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