Purchase a Manhole Base 320/470mm x 110/160mm at Rock Bottom Prices!
320mm Base with 3 Inlets and 1 x 110mm outlet.
470mm Base with 5 inlets and 1 x 110mm outlet.
470mm Base with 5 inlets and 1 x 160mm outlet.
Suitable for use with other underground drainage products in our range of manhole covers / inspection chambers.
Kitemarked and UK made for your peace of mind
Manufactured in the UK and BBA Approved our budget bases have been hand selected by EasyMerchant for their mix of product quality and great price! These bases – along with our inspection chambers and other underground drainage products – have all been manufactured and tested to (and beyond) all of the relevant quality standards.
A range of options to suit your underground drainage job
Our budget Inspection Chambers (also known as manhole bases) in 320mm and 470mm are acceptable for depths of 600mm for the 320mm bases and 3000mm for the 470mm bases so long as the appropriate reducing ring is used beneath the manhole cover after 1.2mts. The 470mm Bases are fine for installation to a degree invert depth of 1200mm. The 320mm bases include two additional inlets for connecting your inspection chambers to the sewer pipe. The 470 bases include 4 inlets.
So that the bases are complaint with Building Regulations 2000 Approved Document H (Drainage & Waste Disposal) a 350mm reducing ring is to be installed for peaks above 1200mm, to a maximum of 3000mm reverse thickness. Our budget bases also come “BBA Approved” which means that they have been tested to the highest standards and will perform beyond all expectations.
Outstanding quality – and always outstanding customer service
At EasyMerchant we do our best to impress our customers, so all of the underground drainage products within this category have been selected due to their excellent combination of high-quality and low cost. We make sure all products are tested to their relevant standards and manually inspect them ourselves to judge the quality before we let them leave our doors. We couple this with excellent service and a speedy delivery fleet, ensuring you get what you need, when you need it – at a price that’s right.
Underground Drainage System Base Invert Depths:
320mm Base = 185mm
320mm Riser = 140mm
470mm Base = 225mm
470mm Riser = 235mm
We buy in bulk – and pass our savings on to you
Whether you need a couple of manhole covers or inspection chambers to stock your fleet of vans, we can help – and because we buy in bulk, we can make sure you get an amazing price, even if you need a single product for a home DIY job.