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Help Centre
Help & Advice Centre
Help & Advice Centre

Our Help & Advice Centre removes the difficulty of finding and rectifying those hot tub problems with helpful advice and will lead you to the right hot tub part /spa spares to easily fix the problem yourself. You will find a range of problem-solving worksheets ready for you to print & keep.

Please note that we try to give general advice, this may not be specific to your spa or hot tub so please always check with the equipment manufacturer first.

IMPORTANT: Always remember, water and electricity do not mix and can be deadly! Any work you attempt yourself is AT YOUR OWN RISK. Please exercise caution. We cannot be held responsible for any injuries or damage that may arise from advice or installation of electrical components in your spa unit.


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Plumbing Valves
Check / One-Way Valves
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HomePlumbingValvesCheck / One-Way Valves

Check / One-Way Valves

A wide selection of Check / One Way Valves used to prevent water entering electrical equipment.

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Extended 1 Year Warranty

In addition to the manufacturers standard warranty (usually 1 year) we also offer the opportunity for you to extend this warranty by a further 1 year for a one off fee. This can be arranged at the point of purchase or within a limited time afterwards.
An extended warranty is an easy way to protect your purchase, against any manufacturing defects causing breakdown. You will benefit from free repairs for the term of the warranty period & If your equipment can't be repaired then we will replace it free of charge.(A delivery surcharge may apply for non UK mainland addresses)
This warranty and the standard manufacturer’s warranty does not cover general wear and tear, abuse or misuse or incorrect installation.
If you would like any further information on our extended warranty scheme please call our Hydrospares team on 01326 371 488 OR email us at info@hydrospares.co.uk

COMPARE Balboa Air Check Valve 32mm Spg
Balboa Air Check Valve 32mm Spg
32mm Spigot Air Check Valve For Use With Heated Blowers
  • Balboa Air Check Valve
  • 32mm Spigot
Balboa Water Group
32mm
pvc
clear
for use with heated blowers
£8.05 (Inc VAT)
QF: VAL-1176
RRP: £10.06
27 In StockSame day dispatch if ordered by 14:00
VAL-1176
COMPARE Balboa Flow Control Valve - High or Low Flow
Balboa Flow Control Valve - High or Low Flow
For Using Within Clim8zone Plumbing System
  • Balboa
  • High/Low Flow Varieties
  • 2"
  • Flow Control
Balboa Water Group
Balboa
High/Low Flow Varieties
2"
For Clim8zone
From £37.15 (Inc VAT)
QF: 11383
RRP: £46.44
3 In StockSame day dispatch if ordered by 14:00
11383
View Options
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Metric - 50mm
  • PVC Non Return Valve
  • Double Union 
  • Metric - 50mm
  • EPDM Seals
  • Grey
Comer
50mm
pvc
non-return
grey
£63.54 (Inc VAT)
QF: 0096
RRP: £76.56
2 In StockSame day dispatch if ordered by 14:00
0096
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Imperial - 1"
  • PVC Non Return Valve
  • Double Union 
  • Imperial - 1.0"
  • Grey
Comer
1"
pvc
non-return
grey
£43.22 (Inc VAT)
QF: VAL-5116
RRP: £52.07
6 In StockSame day dispatch if ordered by 14:00
VAL-5116
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Metric - 32mm
  • PVC Non Return Valve
  • Double Union 
  • Metric -  32mm
  • Grey  
Comer
32mm
pvc
non-return
grey
£43.19 (Inc VAT)
QF: 2853
RRP: £52.04
2 In StockSame day dispatch if ordered by 14:00
2853
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Imperial - 1.50"
  • PVC Non Return Valve
  • Double Union 
  • Imperial - 1.50"
  • Grey
Comer
1.5"
pvc
non-return
grey
£63.54 (Inc VAT)
QF: VAL-2852
RRP: £76.56
3 In StockSame day dispatch if ordered by 14:00
VAL-2852
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Imperial - 2"
  • PVC Non Return Valve
  • Double Union 
  • Imperial - 2.0"
  • Grey
Comer
2"
pvc
non-return
grey
£91.24 (Inc VAT)
QF: VAL-2851
RRP: £109.93
4 In StockSame day dispatch if ordered by 14:00
VAL-2851
COMPARE Del Ozone - Non Return Valve 1/4"
Del Ozone - Non Return Valve 1/4"
All Del Ozones
  • All Del Ozones
  • Hydro-Quip Alternative May be Supplied
  • Non Return Valve 1/4"
Del Ozone
Used on Del Ozones
1/4"
Non-Return
Direct Replacement
£7.49 (Inc VAT)
QF: VAL-6387
RRP: £11.46
5 In StockSame day dispatch if ordered by 14:00
VAL-6387
COMPARE HydroQuip Check Valve 0.75"
HydroQuip Check Valve 0.75"
Socket x Socket
  • HydroQuip Check Valve
  • 0.75"
  • Socket  x Socket
  • White
HydroQuip
0.75"
pvc
white
socket x socket
£15.52 (Inc VAT)
QF: VAL-8655
RRP: £17.25
4 In StockSame day dispatch if ordered by 14:00
VAL-8655
COMPARE HydroQuip Check Valve 1.50"
HydroQuip Check Valve 1.50"
Socket x Socket
  • HydroQuip Check Valve
  • 1.5"
  • Socket  x Socket
  • White
HydroQuip
1.5"
pvc
white
socket x socket
£14.63 (Inc VAT)
QF: VAL-8654
RRP: £16.26
6 In StockSame day dispatch if ordered by 14:00
VAL-8654
COMPARE HydroSpares Check Valve 1.5" Soc -2lb Spring
HydroSpares Check Valve 1.5" Soc -2lb Spring
1.5" Sockets - 2lb Spring
  • Genuine Rainbow product
  • White
  • 1.5" sockets
  • 2.0lb. spring
Hydrospares
1.5"
2lb. spring
white
genuine rainbow product
£109.13 (Inc VAT)
QF: 5108
RRP: £136.41
2 In StockSame day dispatch if ordered by 14:00
5108
COMPARE Koller Air System Check Valve 32mm
Koller Air System Check Valve 32mm
For Use With Heated & NON Heated Blowers
  • Check Valve for Air Systems
  • AKA non return valve
  • For 32mm pipe work
  • 90° MAX
Koller
32mm
pvc
black
90° MAX
£17.53 (Inc VAT)
QF: VAL-4316
RRP: £19.48
15 In StockSame day dispatch if ordered by 14:00
VAL-4316
COMPARE Koller Check Valve Flow Direction Variable
Koller Check Valve Flow Direction Variable
32mm O/D
  • Check Valve Flow Direction Variable
  • 32mm O/D
  • with Spring Valve
Koller
koller
32mm
Check Valve Flow Direction Variable
replacement or spare
£27.49 (Inc VAT)
QF: VAL-2775
3 In StockSame day dispatch if ordered by 14:00
VAL-2775
COMPARE Spa-Tec Check Valve 1.0" Socket x Spigot
Spa-Tec Check Valve 1.0" Socket x Spigot
For Use With Heated & NON Heated Blowers
  • Superflow Check Valve for Air Systems
  • AKA non return valve
  • For 1.0" pipe work
  • 90° MAX
Spa-Tec
1"
pvc
white
90° MAX
£16.95 (Inc VAT)
QF: VAL-4548
RRP: £19.95
1 In StockSame day dispatch if ordered by 14:00
VAL-4548
COMPARE Waterway Check Valve Assembly - Tee - 1" S x 1" S
Waterway Check Valve Assembly - Tee - 1" S x 1" S
  • Genuine Waterway Product
  • Check Valve Assembly
  • 1" Slip x 1 Slip Tee
  • MPN: 600-5000
Waterway
1"
pvc
white
genuine replacement
£9.67 (Inc VAT)
QF: 8490
RRP: £12.09
1 In StockSame day dispatch if ordered by 14:00
8490
COMPARE Watkins Non Return Valve - 3/4"
Watkins Non Return Valve - 3/4"
Barbed -35233
  • Watkins Non Return Valve
  • 3/4" O/D
  • Barbed - 35233
  • Suitable to use on Watkins Heaters
Watkins
3/4"
pvc
non-return
clear
£19.32 (Inc VAT)
QF: VAL-6388
RRP: £21.46
22 In StockSame day dispatch if ordered by 14:00
VAL-6388
COMPARE 2" PVC Slice Valve with Lock - White
2" PVC Slice Valve with Lock - White
Socket x Socket
  • 100% Shut Off
  • Lockable
  • White
2"
Lockable
White
100% SHut off
£31.02 (Inc VAT)
QF: 10685
RRP: £32.66
Out of Stock - Available to Pre-OrderLead time to be confirmed
10685
COMPARE CMP Non Return Valve - 3/8"
CMP Non Return Valve - 3/8"
3/8" Ribbed Barb x 12.5mm Spigot
  • CMP Non Return Valve
  • 3/8" Ribbed Barb
  • 12.5mm Spigot

 

CMP
£6.46 (Inc VAT)
QF: 6446
RRP: £7.18
Special Order ItemLead time to be confirmed
6446
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Metric 20mm O/D - Grey
  • PVC Non Return Valve
  • Double Union 
  • Metric - 20mm 
  • Grey
Comer
20mm
pvc
non-return
grey
£24.03 (Inc VAT)
QF: 7300
RRP: £32.47
Special Order ItemLead time to be confirmed
7300
COMPARE Comer PVC Non Return Valve - Double Union
Comer PVC Non Return Valve - Double Union
Metric - 40mm
  • PVC Non Return Valve
  • Double Union 
  • Metric -  40mm
  • Grey
Comer
40mm
pvc
non-return
grey
£34.71 (Inc VAT)
QF: 5140
RRP: £46.90
Special Order ItemLead time to be confirmed
5140
COMPARE Hydrospares Non Return / Check Valve
Hydrospares Non Return / Check Valve
3/8" Barbed Connections
  • 3/8" Barbs
  • ABS
  • For Fluid and Air
Hydrospares
3/8" Barbed Connection
For Air & fluids
Functions well between 25°C and 60°C
ABS
£4.99 (Inc VAT)
QF: 10562
RRP: £5.99
Out of Stock - Available to Pre-OrderLead time to be confirmed
10562
COMPARE Koller Two Way Valve - 32mm
Koller Two Way Valve - 32mm
White
  • Koller Two Way Valve
  • 32mm O/D
  • White
Koller
£28.99 (Inc VAT)
QF: 3162
Special Order ItemLead time to be confirmed
3162
COMPARE Waterway Air Check Valve 1.5" Soc - 1/4lb Spring
Waterway Air Check Valve 1.5" Soc - 1/4lb Spring
1.5" Sockets 1/4lb Spring
  • Waterway Air Check Valve
  • Clear
  • 1.5" sockets
  • 1/4lb. spring
Waterway
1.5"
pvc
1/4lb. spring
clear
£17.89 (Inc VAT)
QF: 3908
RRP: £22.36
Special Order ItemLead time to be confirmed
3908
COMPARE Waterway Flapper Valve - 2.0" Sockets
Waterway Flapper Valve - 2.0" Sockets
1.25 - 2lb spring
  • Waterway Flapper Check Valve
  • 2.0" Sockets
  • 1.25 - 2lb spring
  • Suitable for Water
Waterway
2"
2lb spring
pvc
white
£12.79 (Inc VAT)
QF: 3909
RRP: £15.99
Special Order ItemLead time to be confirmed
3909
 
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